Comparison

Mlem for Lemmy vs Sentinel Net

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mlem for Lemmy

Experience the Fediverse through a native iOS app designed for seamless interaction with all major Lemmy instances. Enjoy powerful features like swipe actions, quick account switching, and extensive customization for an optimized mobile experience.

Highlights
  • Native iOS Swift development
  • Lemmy instance compatibility
  • Swipe actions
  • Account quick-switching
  • Customization options
  • Optimized backend
Features
Read full description

Mlem for Lemmy is beautiful, smooth, and compatible with all major Lemmy instances. Written fully in iOS' native Swift, Mlem lets you experience Lemmy while taking advantage of the best your device has to offer. With powerful, easy-to-use features such as swipe actions and account quick-switching, a robust set of customizations, and a highly optimized backend, Mlem offers the mobile Lemmy experience you deserve!

About

Sentinel Net

This app allows users to report public safety incidents, missing persons, and hazards directly to investigators. It provides real-time alerts for active cases and facilitates the submission of actionable intelligence to relevant authorities. An optional premium subscription offers enhanced features for field taskings.

Highlights
  • Submit and track BOLO alerts
  • Report hazards and suspicious activity
  • Receive real-time case alerts
  • Connect sightings to investigations
  • Browse local intelligence
  • Unlock field taskings with Pro
Features
Read full description

See It. Report It. End It. Sentinel is the community intelligence network built by veterans to give everyday people a real role in public safety. When you submit a tip, report a hazard, or share a sighting, it goes straight to a verified investigation pipeline — not a comment section. THE FIRST 48 HOURS ARE EVERYTHING When someone goes missing, the clock starts immediately. Sentinel gets your report to investigators in minutes, not days — giving your community a direct line into active cases when it matters most. WHAT YOU CAN DO — Submit and track BOLO alerts for missing persons in your area — Report hazards, suspicious activity, and public safety incidents — Receive real-time alerts for active cases near you — Connect sightings directly to open investigations — Browse local intelligence and community safety reports GO DEEPER WITH SENTINEL NET PRO — $5.99/month Unlock field taskings — structured assignments that put you on the ground helping investigators validate real intelligence. No ads. No distractions. Just mission. BUILT DIFFERENT Most apps put your report in a feed. Sentinel routes it into a structured investigation pipeline. Your tip isn't just a social post — it's actionable intelligence delivered to the people who can act on it. VETERAN-OWNED. MISSION-DRIVEN. Arc Light Technologies was founded by veterans who know what it means to leave no one behind. Sentinel is our commitment to that mission. Download free. Upgrade when you're ready. By using Sentinel Net, you agree to the Arc Light Technologies conditions: Privacy Policy: https://arclighttech.com/privacy-policy Terms of Service: https://www.sleuthnet.com/terms End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mlem for Lemmy3 screens
Sentinel Net4 screens

Verdict

The call

The clearest difference is in-app purchases: Mlem for Lemmy at none against Sentinel Net's 2. Mlem for Lemmy also leads on ads (none vs shown) and ratings volume (84 vs 1). Sentinel Net's advantage is rating (5.0 vs 4.6) and review sentiment (100% vs 80%). On price, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sentinel Net sells 2 in-app purchases, starting at $5.99 per month. Mlem for Lemmy asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sentinel Net holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Mlem for Lemmy has 84 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Mlem for Lemmy's written reviews are positive against 100% of Sentinel Net's.

UpkeepUpdate frequency

Mlem for Lemmy ships an update every 3 weeks, Sentinel Net fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
Mlem for Lemmy versus Sentinel Net: the parameters behind the verdict, then further details
ParameterMlem for LemmySentinel Net
PriceFreeFree
Rating4.6 (84 ratings)5.0 (1 ratings) — better
Positive reviews80.4% of reviews100.0% of reviews — better
Number of ratings84 — better1
Update frequencyEvery 3 weeksFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS26.017.0 — better
Further details — not scored
Size71 MB35 MB
Age rating12+12+
DeveloperEric AndrewsArc Light Technologies

Customer experience

Mlem for Lemmy

All ratings84 ratings
Positive89.3%
Neutral3.6%
Negative7.1%
Written reviews56 reviews
Positive80.4%
Neutral5.4%
Negative14.3%

Sentinel Net

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Mlem for Lemmy

Reported bugs

19 issues
  • Cannot validate username for account creation
  • Loses progress when switching to another app while composing a post/reply
  • App bounces back to the subscribed feeds list in various situations
  • New bugs introduced with each update
  • Embedded content (videos) only show as links
Show 14 more
  • Changing font size via iOS Accessibility settings breaks drag and drop functionality
  • Media type label in the lower left corner covers parts of the image
  • App crashes frequently
  • Jittery scrolling on ProMotion enabled iPhones
  • Cannot log out of an account without deleting it
  • Requires signing back into the instance every time an external link is followed
  • No way to change font size
  • Timeline is a mess
  • Unable to save images
  • Unable to zoom in on images
  • Unable to load images on their own without comments
  • Bad app icon (furry)
  • No full screen for pictures, always goes to post
  • Login required from the start for some users

Requested features

19 requests
  • Customizability for each feed type (e.g., bold headlines)
  • Larger card view option
  • Compact view option
  • Option to customize gestures
  • Fix embedded content to be playable
Show 14 more
  • Fix font size breaking drag and drop
  • Option to not display media type label or hide it
  • Mark inbox as read automatically
  • Hide post option
  • Customizable swipe options on posts
  • Cross-post functionality
  • Set Reader mode as default for links
  • Ability to zoom out on pictures
  • Ability to save images
  • Search for posts within a community
  • Block communities from post options menu
  • Filter instances option
  • Collapse all comments by default
  • Up/Down votes on the right side

Sentinel Net

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Mlem for Lemmy

No in-app purchases

2 purchases

Sentinel Net

Subscriptions2
  • Monthly Subscription$5.991 Month
  • Annual Subscription$59.991 Year

Questions

Is Mlem for Lemmy free?
Mlem for Lemmy is free to download, with no in-app purchases.
Is Sentinel Net free?
Sentinel Net is free to download, with in-app purchases available.
Which has better reviews, Mlem for Lemmy or Sentinel Net?
Sentinel Net is rated higher. Mlem for Lemmy averages 4.6 out of 5 from 84 ratings, while Sentinel Net averages 5.0 from 1 ratings.
Do Mlem for Lemmy or Sentinel Net have ads?
Sentinel Net shows ads; Mlem for Lemmy does not.
Which is updated more often, Mlem for Lemmy or Sentinel Net?
Mlem for Lemmy ships an update every 3 weeks, and Sentinel Net fortnightly. Most recently, Mlem for Lemmy was updated on November 3, 2026 and Sentinel Net on October 30, 2026.

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