AtReminder vs SoundSentry
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
AtReminder
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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 β 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 β 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/
SoundSentry
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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 detectedβlike a baby crying, a dog barking, or a knock at the doorβSoundSentry 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
Verdict
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
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.
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.
| Parameter | AtReminder | SoundSentry |
|---|---|---|
| Price | Free β better | $4.99 |
| Update frequency | Every 2 weeks β better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Best chart rank | β | #200 β better |
| Devices | iPhone, iPad, Apple Watch β better | iPhone |
| Requires iOS | 26.0 | 18.6 β better |
| Further details β not scored | ||
| Size | 4 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Tertius Wessels | Kai Chen |
In-app purchases
AtReminder
- @Reminder Pro β Monthly$3.991 Month
- @Reminder Pro β Annual$29.991 Year
- @Reminder Pro β Lifetime$79.99
SoundSentry
No in-app purchases









