Comparison

AtReminder vs SoundSentry

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

Head to head
About

AtReminder

Features
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You're driving past your brother's exit on the highway and you remember, twenty kilometres later, that you meant to call him. AtReminder fixes the shape of that moment. Pin the people and places that matter to you, add what you don't want to forget, and your phone quietly whispers it back the next time you're within range. Nothing leaves the device. WHAT IT DOES β€’ Save people or businesses to a precise map point. β€’ Add notes β€” contact info, spouse, kids, gate code, anything you might want to remember on arrival. β€’ Get a rich notification when you're within range. Lock-screen actions let you Call, Email, Navigate, or Snooze for 2 hours. β€’ Sort the Places tab by Nearest, Recently Added, or Alphabetical. Nearby section surfaces anything within 5 km. β€’ Organize with custom categories β€” family, clients, vendors, whatever fits your life. β€’ Quiet Hours silence reminders overnight (default 22:00 – 07:00). β€’ A 4-hour per-place cooldown stops repeat banners if you pass the same spot twice. PRIVATE BY DESIGN β€’ Local-first. Your saves never leave your phone. β€’ No accounts. No backend. We don't have servers. β€’ Optional iCloud backup is end-to-end encrypted with a key only your phone holds. β€’ No analytics SDKs. No ad partners. No "anonymous usage data." FREE TIER Up to 3 saved places, with every feature unlocked on those three. The full experience, not a crippled trial. PRO ($3.99/mo, $29.99/yr, or $79.99 once) β€’ Unlimited saved places. β€’ Custom geofence radius per place (50 m – 1 km). β€’ Recurring reminders (coming soon). β€’ Proximity history (coming soon). β€’ 7-day free trial on the annual plan. WORKS WITH iPhone, iPad, iCloud. iOS 17+. QUESTIONS Email support@atreminder.com or visit atreminder.com. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

SoundSentry

Features
Currently charting
Read full description

Stay focused. Let important sounds come to you. SoundSentry listens in the background (microphone permission required) and uses iOS Sound Analysis to recognize common household sounds. When a selected sound is detectedβ€”like a baby crying, a dog barking, or a knock at the doorβ€”SoundSentry immediately sends a local notification so you can respond without taking off your headphones. Great for Working/studying at home with ANC headphones Baby care: crying alerts and other cues Pet care: barking or unusual activity Home awareness: knocks and other events Key Features Choose what to detect: baby cry, dog bark, knocking, and more (availability depends on iOS support) Instant local notifications: get alerted the moment a target sound is detected Privacy-first design: analysis is intended to run on-device (no model training needed) Permissions Microphone: to listen and analyze sounds Notifications: to alert you when a target sound is detected No account required. Disclaimer: Detection accuracy depends on distance, noise level, and device placement. For best results, place the device near the monitored area.

Screenshots

AtReminder4 screens
SoundSentry4 screens

Verdict

The call

The clearest difference is price: AtReminder at Free against SoundSentry's $4.99. AtReminder also leads on update cadence (every 2 weeks vs every 2 months) and device support (3 vs 1). SoundSentry's advantage is in-app purchases (none vs 3) and chart position (#200 vs unranked). On ads there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

AtReminder is free to download; SoundSentry costs $4.99 up front. AtReminder sells 3 in-app purchases, starting at $3.99 per month. SoundSentry asks for nothing beyond the download.

UpkeepUpdate frequency

AtReminder ships an update every 2 weeks, SoundSentry every 2 months. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

Scorecard6 real differences Β· 1 level
AtReminder versus SoundSentry: the parameters behind the verdict, then further details
ParameterAtReminderSoundSentry
PriceFree β€” better$4.99
Update frequencyEvery 2 weeks β€” betterEvery 2 months
AdsNoNo
In-app purchasesYesNo β€” better
Best chart rankβ€”#200 β€” better
DevicesiPhone, iPad, Apple Watch β€” betteriPhone
Requires iOS26.018.6 β€” better
Further details β€” not scored
Size4 MB6 MB
Age rating4+4+
DeveloperTertius WesselsKai Chen

In-app purchases

3 purchases

AtReminder

Subscriptions2
  • @Reminder Pro β€” Monthly$3.991 Month
  • @Reminder Pro β€” Annual$29.991 Year
One-time1
  • @Reminder Pro β€” Lifetime$79.99
None

SoundSentry

No in-app purchases

Questions

Is AtReminder free?
AtReminder is free to download, with in-app purchases available.
Is SoundSentry free?
SoundSentry costs $4.99, with no in-app purchases.
Do AtReminder or SoundSentry have ads?
Neither AtReminder nor SoundSentry shows ads.
Which is updated more often, AtReminder or SoundSentry?
AtReminder ships an update every 2 weeks, and SoundSentry every 2 months. Most recently, AtReminder was updated on October 30, 2026 and SoundSentry on November 9, 2026.

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