# Periodic Timer + vs Wobble Rowing

The clearest difference is review sentiment: Wobble Rowing at 100% against Periodic Timer +'s 54%. Wobble Rowing also leads on price (Free vs $4.99) and rating (5.0 vs 3.9). Periodic Timer +'s advantage is ratings volume (74 vs 2) and chart position (#124 vs unranked). On update cadence, ads, monetization model and device support there is nothing between them.

Wobble Rowing is free to download; Periodic Timer + costs $4.99 up front. Periodic Timer + sells 3 one-off in-app purchases. Wobble Rowing asks for nothing beyond the download.

Wobble Rowing holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Periodic Timer + has 74 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 54% of Periodic Timer +'s written reviews are positive against 100% of Wobble Rowing's.

Periodic Timer + ships an update every 4 months, Wobble Rowing every 2 months. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Periodic Timer + | Wobble Rowing |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.9 (74 ratings)](https://appshunter.io/ios/app/periodic-timer-plus/id1175807581/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/wobble-rowing/id6762370650/reviews)** |
| Number of ratings | **74** | 2 |
| Positive reviews | 53.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Best chart rank | **#124** | — |
| Size | 12 MB | 0 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Kelin](https://appshunter.io/developer/933241655) | [William North](https://appshunter.io/developer/1893958270) |

## What reviewers say

### Periodic Timer +

[App page](https://appshunter.io/ios/app/periodic-timer-plus/id1175807581)

**Currently charting:** #124 Top Paid · Health & Fitness (US App Store)

This app provides a simple, repeating interval timer that works in the background. It offers customizable sounds, vibration, and flexible output modes for various activities like fitness, cooking, and learning. The interface is designed to be minimalist and distraction-free.

**Highlights:** Repeating interval timer, Customizable sounds and vibration, Works in the background, Long intervals up to 99 hours, Multiple timer output modes, Shake to start functionality

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip a Banana | $0.99 | one-time |
| Tip a Coffee | $3.99 | one-time |
| Donate: Bust the project! | $9.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 👍 Perfect for workouts
- 👍 No ads, no nonsense
- 👍 Good app, like it
- 👍 Very practical

**What reviewers complain about**

- 😩 Nagging to write reviews
- 😩 Doesn't work in background
- 😩 Not loud enough
- 😩 Vibration too short
- 😩 Paid version lacks features

**Reported bugs**

- Doesn't work in background
- Timer doesn't work for over 59 minutes on watch
- Custom alert audio not working
- Alarm not working after payment
- App doesn't open

**Requested features**

- More sound options
- Ability to set alarm for a time of day
- Explanation for changing display mode
- Simultaneous timers
- Ability to set start/end times and weekdays


### Wobble Rowing

[App page](https://appshunter.io/ios/app/wobble-rowing/id6762370650)

This app measures the stability of your rowing shell in real-time, calculating a "Wobble Factor" to help you improve your technique. It also tracks stroke rate and pace, providing per-minute summaries and saving detailed data for analysis.

**Highlights:** Measures shell stability (Wobble Factor), Tracks stroke rate (SPM), Monitors pace (min/500m), Real-time data capture, Per-minute session summaries, CSV data export for analysis

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Timer + free?

Periodic Timer + costs $4.99, and also offers in-app purchases.

### Is Wobble Rowing free?

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

### Which has better reviews, Periodic Timer + or Wobble Rowing?

Wobble Rowing is rated higher. Periodic Timer + averages 3.9 out of 5 from 74 ratings, while Wobble Rowing averages 5.0 from 2 ratings.

### Do Periodic Timer + or Wobble Rowing have ads?

Neither Periodic Timer + nor Wobble Rowing shows ads.

### Which is updated more often, Periodic Timer + or Wobble Rowing?

Periodic Timer + ships an update every 4 months, and Wobble Rowing every 2 months. Most recently, Periodic Timer + was updated on October 19, 2026 and Wobble Rowing on October 8, 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.*