# Periodic Timer vs OnLeeTech

The clearest difference is in-app purchases: Periodic Timer at none against OnLeeTech's 1. OnLeeTech's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OnLeeTech sells 1 in-app purchase, starting at $5.00 per month. Periodic Timer asks for nothing beyond the download.

Periodic Timer ships an update every 2 months, OnLeeTech every 3 months. The most recent releases landed on September 29, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Periodic Timer | OnLeeTech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (167 ratings)](https://appshunter.io/ios/app/periodic-timer/id933241656/reviews)** | — |
| Number of ratings | **167** | — |
| Positive reviews | 52.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 23 MB | 134 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Vladimir Kelin](https://appshunter.io/developer/933241655) | [Bluestone Apps, LLC Mobile](https://appshunter.io/developer/941163853) |

## What reviewers say

### Periodic Timer

[App page](https://appshunter.io/ios/app/periodic-timer/id933241656)

This app provides a simple, repeating interval timer that can run in the background without distracting you. It offers customizable alerts, quick start options, and prevents your screen from locking while active. Ideal for various activities like fitness, cooking, and learning.

**Highlights:** Repeating interval timer, Background operation, Customizable alerts (vibration/sound), Prevent lockscreen, Shake to start, Multiple timer output modes

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and intuitive interface
- ⏱️ Effective repeating/interval timer functionality
- 🎯 Does exactly what it's designed to do
- 🔇 Vibration-only option available
- 📱 Works in background with screen off

**What reviewers complain about**

- 🔊 Sound/notification issues (unreliable or missing)
- 💰 Aggressive premium upselling in free version
- 🐛 Timer cancels when phone is shaken
- 🔋 Activates heart rate sensor, drains battery
- 📵 Doesn't work reliably with screen locked

**Reported bugs**

- Sound/notifications fail to trigger despite settings enabled
- Timer cancels when phone is shaken or moved
- Vibration doesn't work when screen is locked or off
- App crashes on launch (especially after updates)
- Watch app crashes or doesn't function

**Requested features**

- Adjustable sound volume and custom alert sounds
- Customizable vibration patterns
- Settings menu for user preferences
- Ability to add notes/labels to timers
- Seconds-only timer option


### OnLeeTech

[App page](https://appshunter.io/ios/app/onleetech/id6741426901)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.00 | per month |


## Frequently asked questions

### Is Periodic Timer free?

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

### Is OnLeeTech free?

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

### Do Periodic Timer or OnLeeTech have ads?

Neither Periodic Timer nor OnLeeTech shows ads.

### Which is updated more often, Periodic Timer or OnLeeTech?

Periodic Timer ships an update every 2 months, and OnLeeTech every 3 months. Most recently, Periodic Timer was updated on September 29, 2026 and OnLeeTech on September 11, 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.*