# Gripwise vs Sleep Ledger

The clearest difference is in-app purchases: Gripwise at none against Sleep Ledger's 3. Gripwise also leads on iOS requirement (12.0 vs 18.0). Sleep Ledger's advantage is update cadence (weekly vs every 4 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Sleep Ledger sells 3 in-app purchases, starting at $4.99 per month. Gripwise asks for nothing beyond the download.

Gripwise ships an update every 4 weeks, Sleep Ledger weekly. The most recent releases landed on May 16, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Gripwise | Sleep Ledger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sleep-ledger-debt-tracker/id6759897307/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 38 MB | 7 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [GRIPWISE TECH, LDA](https://appshunter.io/developer/1548125113) | [Takumi Kanzaki](https://appshunter.io/developer/1820952468) |

## What reviewers say

### Gripwise

[App page](https://appshunter.io/ios/app/gripwise/id1595974632)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sleep Ledger

[App page](https://appshunter.io/ios/app/sleep-ledger-debt-tracker/id6759897307)

This app analyzes your sleep data from Apple Health to calculate your sleep debt and provides a personalized daily plan to help you recover. It offers insights into sleep quality and a clear path to reaching your sleep goals.

**Highlights:** Sleep debt calculation, Personalized recovery plan, Quality-weighted sleep score, Calendar-based schedule, Lock screen widgets, On-device processing, Siri Shortcuts

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $29.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Gripwise free?

Gripwise is free to download, with no in-app purchases.

### Is Sleep Ledger free?

Sleep Ledger is free to download, with in-app purchases available.

### Do Gripwise or Sleep Ledger have ads?

Neither Gripwise nor Sleep Ledger shows ads.

### Which is updated more often, Gripwise or Sleep Ledger?

Gripwise ships an update every 4 weeks, and Sleep Ledger weekly. Most recently, Gripwise was updated on May 16, 2026 and Sleep Ledger on September 21, 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.*