# Periodic Timer vs Siftello

The clearest difference is in-app purchases: Periodic Timer at none against Siftello's 3. Siftello's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Siftello sells 3 in-app purchases, starting at $1.00 per month. Periodic Timer asks for nothing beyond the download.

Periodic Timer ships an update every 2 months, Siftello every 5 days. Both last shipped on October 16, 2026.

## The numbers

| Metric | Periodic Timer | Siftello |
| --- | --- | --- |
| 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 5 days** |
| Monetization | Free | — |
| Size | 23 MB | 45 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Kelin](https://appshunter.io/developer/933241655) | [Grzegorz Gaworowski](https://appshunter.io/developer/1480935038) |

## 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


### Siftello

[App page](https://appshunter.io/ios/app/siftello-declutter-gallery/id6810312075)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Siftello Premium Monthly | $1.00 | per month |
| Siftello Premium Yearly | $5.00 | per year |
| Siftello Premium Lifetime | $10.00 | one-time |


## Frequently asked questions

### Is Periodic Timer free?

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

### Is Siftello free?

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

### Do Periodic Timer or Siftello have ads?

Neither Periodic Timer nor Siftello shows ads.

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

Periodic Timer ships an update every 2 months, and Siftello every 5 days. Most recently, Periodic Timer was updated on October 16, 2026 and Siftello on October 16, 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.*