Always-On Sharing: Locket, Saturn and Partiful — What Each App Broadcasts and How to Narrow It

Why this is different in 2026

Two things changed the landscape for these specific apps over the past year.

Saturn was acquired by Snap Inc. in June 2025. The app that holds your teen's school schedule — period by period, club commitments, work shifts — now sits inside the same corporate structure as Snapchat. Snap has said Saturn will continue operating as a standalone app while it explores integrating calendar features into Snapchat directly. What this means practically: Saturn's privacy policy was updated to state that Snap Inc. runs the platform. Your teen's academic-schedule data is now governed by Snap's privacy infrastructure, not a small startup's.

Partiful went mainstream with Gen Z. The app was designed for adults 18 and up. Its own privacy policy — dated August 2026 — states that it does not knowingly collect personal data from users under 18 and deactivates accounts if it learns a minor is using the service. In practice, there is no real age verification, and the app shows up repeatedly in teen-interest rankings and parent safety reports. A parent whose teen hosts or attends parties has probably encountered it.

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Locket Widget — a photo on every friend's home screen

What it is

Locket is a close-friends photo-sharing app. Your teen takes a photo inside the app (not from their camera roll — the app uses its own camera) and it appears as a live widget on each friend's home screen. There's no feed, no public profile, and no search — connections are phone-contact-based.

The pitch is intimacy at a distance: instead of a curated Instagram post, you get the spontaneous, unedited version. That's what teenagers describe as the appeal.

What it exposes

Contact list access. Adding friends requires Locket to sync your teen's contact list. According to Locket's own privacy policy, the app requests this access to make it easy to find friends — it claims not to retain the contacts after the friend-matching step. You should verify this in the app's permissions on your teen's device and revoke it after setup if you prefer.

Photos, immediately and without preview. When a friend sends a photo, it appears on your teen's home screen widget automatically. There is no inbox, no preview, and no decline option — the image arrives. Your teen can delete a received photo, but that removes it only from their own app, not from the sender's device or from anyone else who received it. The sender can "undo send," which removes the image from everyone's app.

Locket's rights to photos. Locket's terms of service grant the company broad rights to photos shared on the platform — multiple safety reviewers have flagged this as language that allows the company to use shared photos for any purpose. This is worth reading before your teen agrees to the terms.

The settings that matter

Friend list. Locket caps connections at approximately 20 friends (the limit has changed over time — check the current app). Keep this list to people your teen knows in person. Strangers can request connections via invite links posted publicly — one common pattern is teens sharing Locket invite links on TikTok or Reddit to find new connections. Audit the friend list the same way you'd audit a contact list.

Undo send. Your teen can retract a photo they've already sent, and it disappears from every recipient's app. This is available immediately after sending. It is not a substitute for thinking before sending, but it's there.

Delete received photos. Your teen can remove a received photo from their own device, but this does not remove it from the sender's record or other recipients'.

No parental controls exist in the app. There is no family dashboard, linked-account feature, or parent visibility. Your oversight comes from the device level (see the OS layer below) and direct conversation.

Age rating. Locket is rated 13+ on the App Store and T (Teen) on Google Play. Age verification is a checkbox during signup — there is no real gate.

What this doesn't cover

Locket has no moderation of photo content. There is no in-app AI to flag explicit images. Reporting a user exists, but the platform response time is unknown. The main protection is the closed friend group: unlike public social media, a stranger cannot see your teen's photos unless your teen has added them.

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Saturn — your teen's school schedule, shared

What it is

Saturn is a student social calendar. Students enter or sync their school schedule, and the app builds a social layer on top of it: you can see which friends share your period, tap a classmate to find out their schedule, and plan around shared free time. It is widely used — Snap Inc. reported that Saturn reaches approximately 80 percent of U.S. high school students across more than 17,000 schools. If your teen is in high school, there is a reasonable chance Saturn already has their schedule.

What it exposes — and what changed when Snap bought it

Schedule visibility is on by default. When a student creates an account and enters their schedule, that schedule is visible to other verified students at the same school unless the student actively turns it off. The default is open sharing within the school community.

This means: period 1, period 2, lunch period, free periods, after-school activities, work shifts (if entered) — visible to everyone verified at that school. A student your teen has never met can pull up their daily schedule.

Snap ownership. Since Snap's June 2025 acquisition, Saturn's updated privacy policy notes that Snap Inc. operates the platform. What this changes practically is that Saturn's data practices are now linked to Snap's corporate privacy infrastructure. If Snap eventually integrates Saturn's calendar data into Snapchat (which it has signaled as a long-term goal), schedule data and social data could sit on the same platform. This integration has not happened yet, but parents should be aware that the company holding the data is no longer a standalone startup.

Contact and location. During signup, Saturn asks for location access and permission to upload contacts. Both can be declined without losing core functionality. If your teen already granted these during an earlier setup, check the app permissions and revoke them.

The settings that matter

Schedule Visibility toggle. This is the primary control. In the app, go to your teen's profile → Edit Profile → scroll down to the Schedule Visibility toggle → turn it off. With Schedule Visibility off, other students cannot see your teen's schedule, even if they're verified at the same school.

Private account mode. Setting the account to private hides the schedule and any linked social media profiles from students your teen hasn't accepted as a friend. This is a secondary layer of protection on top of the Schedule Visibility toggle. Look for this in profile settings.

Block. Individual students can be blocked from seeing your teen's schedule, which is useful for specific situations.

Contacts and location. If these permissions were granted during signup, you can revoke them in your device's Settings app under the Saturn entry. The core calendar function does not require either.

Parental access. There is no parent dashboard. According to reporting from Education Week, parents can only access a child's data if the student emails Saturn directly to authorize it. This is worth knowing — you cannot create a linked parent account.

What this doesn't cover

Saturn shows schedule data, not message content — there is a social/messaging layer, but the primary privacy concern is the schedule itself. A student who turns off Schedule Visibility can still use the calendar personally and see mutual class periods with friends who share their information. The honest trade-off is that the social features (finding which friends are in your period) work only if schedules are visible.

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Partiful — the party invite app

What it is

Partiful is an event-invitation app. A host creates an event page — date, time, location, theme — and invites guests by entering their phone numbers or sharing a link via text. Guests receive a text with a link; they can RSVP without downloading the app. The host gets a live RSVP count and guest list.

The appeal for teens is that it replaces both the group text and the phone number exchange: everything lives in one page, the invite looks good, and guests can see who else is coming.

The age situation

Partiful's own privacy policy, updated August 2026, states clearly that the service is intended for users 18 and older. The policy says Partiful does not knowingly collect personal data from users under 18 and will deactivate an account and delete data if it learns a minor is using the service. The App Store rates it 17+ in some markets.

There is no real age verification — no ID check, no parental consent flow. The terms require users to confirm they are 18 or are a parent or guardian consenting to a minor's use, but this is self-reported.

This means: if your teen is hosting or attending Partiful events, they are using an app its maker says is for adults. This doesn't mean the app is dangerous, but it does mean the app does not have teen-specific protections baked in. Parental controls and settings designed for minors do not exist here.

What it exposes

Event details to everyone who RSVP'd. When a teen RSVPs to a Partiful event, they see who else is attending — by default. This means your teen's name and RSVP status are visible to every other guest the host has invited.

Phone number for RSVP. Guests RSVP by entering a phone number (or the host imports contacts). The phone number is tied to the RSVP record and used for event updates. Whether guest phone numbers are visible to other guests depends on the host's settings — the default is that guests see names, not numbers. Check Partiful's current privacy policy for the exact data-sharing terms.

Location details. Full event address is visible to anyone with a valid invite link. Public events can be set so they're findable by anyone — not just invited guests.

The settings that matter

These are host settings — they apply when your teen is organizing an event, not attending one.

Guest list visibility. Hosts can choose whether guests see who else has RSVP'd. Turning this off means your teen's name isn't visible to other attendees. If your teen is an attendee rather than a host, this setting is controlled by whoever organized the event.

RSVP approval. Hosts can require manual approval of each RSVP rather than accepting anyone who has the link. This is useful for ensuring the guest list stays to people actually invited.

Event privacy. Public events are discoverable by anyone. Private events require an invite link. For a teen, private is the right default.

Plus-one limits. Hosts can control whether guests can bring additional people not on the original list.

What this doesn't cover

If your teen is attending rather than hosting, most of these settings are the organizer's choice, not your teen's. Your teen can control whether they appear by name on the RSVP list only if the host has enabled that toggle — they cannot override it themselves. The main lever for attendees is simply whether to RSVP through Partiful at all, versus responding directly to the organizer.

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The four-layer approach

Layer 1: Account settings (the ones above)

Work through each app's settings with your teen, not for them. Walking through it together is more useful than quietly adjusting it yourself — it makes the trade-off visible: "If you turn schedule visibility off, your friends won't be able to find you as easily during free periods. Here's how to decide."

The specific changes worth making for most families:

• Locket: Audit the friend list. Remove anyone your teen doesn't know in person. Revoke contact list access in device settings after the initial setup.
• Saturn: Turn off Schedule Visibility in Edit Profile. Set the account to private. Decline location and contact permissions.
• Partiful: If your teen hosts events, enable manual RSVP approval and turn off public guest-list visibility. Keep events private, not public.

Layer 2: iOS Screen Time or Android Family Link

Neither Locket nor Saturn has parental controls. For supervision at the device level:

On iPhone (iOS Screen Time)You can require approval for app downloads, set daily time limits per app, schedule Downtime (when apps go dark), and review App Activity to see how much time your teen spends in each app. Set this up in Settings → Family (iOS 27) or Settings → Screen Time → [your teen's name] (earlier iOS versions). See the Apple Screen Time guide for current menu paths.

On Android (Family Link)You can approve app installs, set daily limits per app, review app usage, and lock the device at bedtime. See the Google Family Link guide for setup steps.

These tools don't give you visibility into what your teen shares — only how much time they spend in an app and whether the app is installed at all. The content question lives at the account level.

Layer 3: Network filtering

A home DNS filter (see the NextDNS for Families guide or the router controls guide) can block specific apps or domains at the network level. This is more useful for content-filtering than for managing these specific apps: Locket, Saturn, and Partiful are not content platforms in the traditional sense. DNS filtering doesn't change what gets shared once the app is open on a cellular connection anyway.

The more useful tool here is the device-level controls above, not network filtering.

Layer 4: The conversation

The most useful thing is a direct conversation about what each app does and why the settings are set the way they are. The goal isn't to eliminate the apps — all three serve real purposes for teens — it's to make sure your teen understands what defaults mean.

Specific things worth discussing:

• "Saturn has your whole schedule visible to everyone at your school until we change one toggle. Let's look at what you want visible and what you don't."
• "On Locket, there's no way for you to say no to a photo before it lands on your screen. Is that okay with everyone you've connected to?"
• "Partiful says you need to be 18 to use it. We can talk about the event you're attending, but I want to know who the host is and what the privacy settings are."

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What this guide doesn't cover

Content quality on Locket. Locket has no content moderation. An inappropriate image from a connection would appear on the home screen immediately. The protection is the closed friend group — this is why the friend list audit matters more than any other setting.

What Saturn will look like once Snap integrates it. Snap has signaled it plans to fold Saturn's calendar features into Snapchat. When that happens, the privacy settings and parent visibility tools will likely change. If your teen uses Saturn, revisit the settings when any major app update lands. See the Snapchat Family Center guide for the current Snapchat parent tools.

Partiful for non-hosts. If your teen is a guest at someone else's event, the host controls the guest-list visibility settings. Your teen cannot override them. The main lever is deciding whether to RSVP through Partiful or reach out to the organizer directly.

Apps in the same category that aren't covered here. Locket, Saturn, and Partiful are the most widely used in this category, but the pattern — ambient, passive, on-by-default sharing — shows up in other apps too. If you're evaluating a new app, the questions to ask are: what does it share by default, who can see it, and is there a preview/decline step before something goes out? The how to vet any app guide walks through that framework.

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What to say to your teen

The framing that tends to work better than restrictions: defaults vs. choices.

Most teens haven't thought about the fact that their Saturn schedule is visible to everyone at school by default. It's not a secret — it's a default. Presenting it as a privacy violation they've been subjected to (which frames you as the authority) is less useful than presenting it as a setting they probably didn't realize was on.

"Did you know that right now, anyone at your school can pull up your full schedule on Saturn? We can turn that off, and you'd still be able to use the app and share with friends you actually choose. Want to do that together?"

Locket's appeal is connection, not broadcasting — most teens use it with a small close-friends group, and that's fine. The conversation is about the friend list, not the app itself.

Partiful is worth a direct conversation because the app's terms say 18+. This doesn't mean your teen can't attend a party where invites went out via Partiful, but it's worth being clear: you're the person who decides which events they attend and what information they share to RSVP.

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Tonight: three actions

Before you startFor Saturn, have your teen log in alongside you — you can't access the settings from outside the account, and you'll need them to make the changes. For Locket, open the app on your teen's device and check the friend list together.

01. On Saturn: go to your teen's profile, tap Edit Profile, scroll to the Schedule Visibility toggle, and turn it off. Then set the account to private in the same settings section.

02. On Locket: open the friends list and go through it with your teen. Remove anyone they don't know in person. Then go to the device's Settings app, find Locket under Privacy → Contacts, and revoke contact access.

03. On Partiful: if your teen hosts events, go into a current event and check the guest-list visibility and RSVP approval settings. For a teen who only attends events, the action is a conversation: agree that for any Partiful invite, they tell you who's hosting and where the event is.

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