# BuildTimer vs Sleep time record charts

The clearest difference is ads: BuildTimer at none against Sleep time record charts's shown. BuildTimer also leads on update cadence (fortnightly vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BuildTimer ships an update fortnightly, Sleep time record charts monthly. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | BuildTimer | Sleep time record charts |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Monthly |
| Size | 40 MB | 5 MB |
| Requires iOS | **16.3** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [hashimoto ryouya](https://appshunter.io/developer/1684907824) | [YUTAKA IZUMIYAMA](https://appshunter.io/developer/1657248429) |

## What reviewers say

### BuildTimer

[App page](https://appshunter.io/ios/app/buildtimer/id6448892333)

**In-app purchases:** none


### Sleep time record charts

[App page](https://appshunter.io/ios/app/sleep-time-record-charts/id6502098948)

**In-app purchases:** none


## Frequently asked questions

### Is BuildTimer free?

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

### Is Sleep time record charts free?

Sleep time record charts is free to download, with no in-app purchases.

### Do BuildTimer or Sleep time record charts have ads?

Sleep time record charts shows ads; BuildTimer does not.

### Which is updated more often, BuildTimer or Sleep time record charts?

BuildTimer ships an update fortnightly, and Sleep time record charts monthly. Most recently, BuildTimer was updated on October 6, 2026 and Sleep time record charts on October 3, 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.*