# Periodic Timer vs GlowWatt

The clearest difference is review sentiment: GlowWatt at 100% against Periodic Timer's 52%. GlowWatt also leads on rating (5.0 vs 4.1) and update cadence (monthly vs every 2 months). Periodic Timer's advantage is ratings volume (171 vs 3). 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.

GlowWatt holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Periodic Timer has 171 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 52% of Periodic Timer's written reviews are positive against 100% of GlowWatt's.

Periodic Timer ships an update every 2 months, GlowWatt monthly. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Periodic Timer | GlowWatt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (171 ratings)](https://appshunter.io/ios/app/periodic-timer-simple-repeat/id933241656/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/glowwatt/id6746350564/reviews)** |
| Number of ratings | **171** | 3 |
| Positive reviews | 52.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 26 MB | 10 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Kelin](https://appshunter.io/developer/933241655) | [aryan rogye](https://appshunter.io/developer/1760952349) |

## What reviewers say

### Periodic Timer

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


### GlowWatt

[App page](https://appshunter.io/ios/app/glowwatt/id6746350564)

This app displays real-time ComEd hourly energy prices for northern Illinois. It features at-a-glance tiles indicating price ranges and offers widgets, lock screen support, and an Apple Watch app. The application prioritizes user privacy with no sign-in or personal data collection.

**Highlights:** Live ComEd hourly energy prices, At-a-glance price range tiles, Widgets and lock screen support, Apple Watch app and complication, No sign-in or personal data collection, Open source

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

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Timer free?

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

### Is GlowWatt free?

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

### Which has better reviews, Periodic Timer or GlowWatt?

GlowWatt is rated higher. Periodic Timer averages 4.1 out of 5 from 171 ratings, while GlowWatt averages 5.0 from 3 ratings.

### Do Periodic Timer or GlowWatt have ads?

Neither Periodic Timer nor GlowWatt shows ads.

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

Periodic Timer ships an update every 2 months, and GlowWatt monthly. Most recently, Periodic Timer was updated on November 11, 2026 and GlowWatt on November 5, 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.*