# Constant Scale vs Simple Workout Calendar

The clearest difference is price: Constant Scale at Free against Simple Workout Calendar's $0.99. Constant Scale also leads on iOS requirement (11.0 vs 15.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

Constant Scale is free to download; Simple Workout Calendar costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Constant Scale ships an update every 4 weeks, Simple Workout Calendar every 2 months. The most recent releases landed on September 30, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Constant Scale | Simple Workout Calendar |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Size | 150 MB | 34 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yiwu Chaolan Import & Export Co., Ltd.](https://appshunter.io/developer/1788815884) | [YUMA OHARA](https://appshunter.io/developer/6773019722) |

## What reviewers say

### Constant Scale

[App page](https://appshunter.io/ios/app/constant-scale/id6740186656)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Workout Calendar

[App page](https://appshunter.io/ios/app/simple-workout-calendar/id6775105320)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Constant Scale free?

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

### Is Simple Workout Calendar free?

Simple Workout Calendar costs $0.99, with no in-app purchases.

### Do Constant Scale or Simple Workout Calendar have ads?

Neither Constant Scale nor Simple Workout Calendar shows ads.

### Which is updated more often, Constant Scale or Simple Workout Calendar?

Constant Scale ships an update every 4 weeks, and Simple Workout Calendar every 2 months. Most recently, Constant Scale was updated on September 30, 2026 and Simple Workout Calendar on September 27, 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.*