# One vs Timer Machine

The clearest difference is review sentiment: One at 100% against Timer Machine's 50%. One also leads on rating (5.0 vs 3.8) and iOS requirement (12.0 vs 15.0). Timer Machine's advantage is update cadence (every 5 months vs every 23 months) and ratings volume (20 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

One holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Timer Machine has 20 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of One's written reviews are positive against 50% of Timer Machine's.

One ships an update every 23 months, Timer Machine every 5 months. The most recent releases landed on September 10, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | One | Timer Machine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/one-tap-timer/id737441400/reviews)** | [3.8 (20 ratings)](https://appshunter.io/ios/app/timer-machine/id1387301617/reviews) |
| Number of ratings | 4 | **20** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 1 MB | 14 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Prosin](https://appshunter.io/developer/1191609404) | [Montage App, Inc.](https://appshunter.io/developer/1530864548) |

## What reviewers say

### One

[App page](https://appshunter.io/ios/app/one-tap-timer/id737441400)

A straightforward countdown timer for iPhone designed for ease of use. Its intuitive interface allows you to start and manage timers with a single tap, making it a convenient tool for daily tasks. The app focuses on essential functionality without unnecessary complexity.

**Highlights:** One-tap timer start and toggle, Vivid and intuitive user interface, Ergonomic design and functionality, Convenient for everyday use

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

**In-app purchases:** none


### Timer Machine

[App page](https://appshunter.io/ios/app/timer-machine/id1387301617)

Manage your time effectively with three customizable timers. Set personalized alert sounds to suit your workflow for work, study, or personal projects. This app offers an intuitive interface for a more organized approach to your day.

**Highlights:** Three personalized timers, Customizable alert sounds, User-friendly interface, Time management for work and study, Intuitive design

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is One free?

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

### Is Timer Machine free?

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

### Which has better reviews, One or Timer Machine?

One is rated higher. One averages 5.0 out of 5 from 4 ratings, while Timer Machine averages 3.8 from 20 ratings.

### Do One or Timer Machine have ads?

Neither One nor Timer Machine shows ads.

### Which is updated more often, One or Timer Machine?

One ships an update every 23 months, and Timer Machine every 5 months. Most recently, One was updated on September 10, 2026 and Timer Machine on August 25, 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.*