# TempoFlow vs ShiftBell

The clearest difference is in-app purchases: TempoFlow at none against ShiftBell's 3. TempoFlow also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). ShiftBell's advantage is ads (none vs shown) and update cadence (every 4 days vs every 11 days). On price there is nothing between them.

Both are free to download. ShiftBell sells 3 in-app purchases, starting at $1.99 per month. TempoFlow asks for nothing beyond the download.

TempoFlow ships an update every 11 days, ShiftBell every 4 days. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | TempoFlow | ShiftBell |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 days | **Every 4 days** |
| Size | 31 MB | 14 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chih-Yu Chen](https://appshunter.io/developer/1864892671) | [SEONG MIN LEE](https://appshunter.io/developer/6794776142) |

## What reviewers say

### TempoFlow

[App page](https://appshunter.io/ios/app/tempoflow-timer-and-pomodoro/id6757150796)

**Features:** macOS Compatibility

**In-app purchases:** none


### ShiftBell

[App page](https://appshunter.io/ios/app/shiftbell-shift-work-alarm/id6794776140)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShiftBell Pro Monthly | $1.99 | per month |
| ShiftBell Pro Yearly | $9.99 | per year |
| ShiftBell Pro | $34.99 | one-time |


## Frequently asked questions

### Is TempoFlow free?

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

### Is ShiftBell free?

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

### Do TempoFlow or ShiftBell have ads?

TempoFlow shows ads; ShiftBell does not.

### Which is updated more often, TempoFlow or ShiftBell?

TempoFlow ships an update every 11 days, and ShiftBell every 4 days. Most recently, TempoFlow was updated on October 10, 2026 and ShiftBell 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.*