# Instant Wake Up vs Keep in Memory

The clearest difference is price: Instant Wake Up at Free against Keep in Memory's $0.99. Instant Wake Up also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.2). Keep in Memory's advantage is in-app purchases (none vs 1) and ads (none vs shown).

Instant Wake Up is free to download; Keep in Memory costs $0.99 up front. Instant Wake Up sells 1 one-off in-app purchase. Keep in Memory asks for nothing beyond the download.

Instant Wake Up ships an update every 5 months, Keep in Memory every 3 days. The most recent releases landed on October 20, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Instant Wake Up | Keep in Memory |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.4 (514 ratings)](https://appshunter.io/ios/app/instant-wake-up-alarm-clock/id1491016448/reviews)** | — |
| Number of ratings | **514** | — |
| Positive reviews | 45.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 1 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jarig Duval](https://appshunter.io/developer/539738096) | [MUSTAFA KEMAL DEMIR](https://appshunter.io/developer/1883646654) |

## What reviewers say

### Instant Wake Up

[App page](https://appshunter.io/ios/app/instant-wake-up-alarm-clock/id1491016448)

This app helps you wake up on time with engaging missions that prevent snoozing. It offers customizable alarms, bedtime reminders, and features to ensure you develop healthy sleep habits and a productive morning routine.

**Highlights:** Wake-up mission sets to turn off alarm, Customizable ringtones and music alarms, Bedtime reminders for proactive sleep management, Math puzzles, memory games, and shake missions, Barcode scanning mission, Customizable alarm volume and lock, Procedural Ringtones to prevent auditory adaptation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Free | $24.99 | one-time |

**What reviewers like**

- ⏰ Effectively wakes up heavy sleepers
- 🧠 Brain-engaging missions prevent snoozing
- 📊 Improves sleep consistency and wake times
- 🔊 Loud, attention-grabbing alarm sound
- 💰 Free version with robust features

**What reviewers complain about**

- 🐛 Frequent app crashes throughout day
- 🔋 Extreme battery drain (50% in 5 hours)
- 📢 Unwanted crash notifications when app is open
- 🔊 Alarm may ring repeatedly after stopping
- 📵 Doesn't respect Do Not Disturb mode

**Reported bugs**

- App crashes during alarm or shortly after
- Alarm continues ringing after hitting stop button
- Alarm goes off multiple times despite being dismissed
- Phone freezes with alarm still ringing
- Background mode doesn't work reliably

**Requested features**

- Ability to disable crash notifications independently
- Escape/emergency stop option for missions
- Automation to toggle background mode at set times
- Battery optimization for background mode
- Screen time integration to prevent app deletion


### Keep in Memory

[App page](https://appshunter.io/ios/app/keep-in-memory/id6760288596)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Instant Wake Up free?

Instant Wake Up is free to download, with in-app purchases available.

### Is Keep in Memory free?

Keep in Memory costs $0.99, with no in-app purchases.

### Do Instant Wake Up or Keep in Memory have ads?

Instant Wake Up shows ads; Keep in Memory does not.

### Which is updated more often, Instant Wake Up or Keep in Memory?

Instant Wake Up ships an update every 5 months, and Keep in Memory every 3 days. Most recently, Instant Wake Up was updated on October 20, 2026 and Keep in Memory on September 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*