# BumFit vs CalSlashD

The clearest difference is in-app purchases: BumFit at none against CalSlashD's 1. CalSlashD's advantage is update cadence (every 2 days vs monthly) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. CalSlashD sells 1 one-off in-app purchase. BumFit asks for nothing beyond the download.

BumFit ships an update monthly, CalSlashD every 2 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BumFit | CalSlashD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bumfit/id6755433432/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Free | — |
| Size | 160 MB | 10 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [John Gholson](https://appshunter.io/developer/1759623648) | [Daniel Hotyanov](https://appshunter.io/developer/1825695141) |

## What reviewers say

### BumFit

[App page](https://appshunter.io/ios/app/bumfit/id6755433432)

Transform your fitness routine into an epic RPG adventure with structured training programs, competitive battles, and detailed performance tracking. Unlock characters, achieve Elite status, and visualize your progress with comprehensive analytics.

**Highlights:** 100+ structured workout programs, Create custom workouts, Battle unique villains, Story mode fitness tests, Track workouts automatically, Comprehensive progress graphs, Muscle group analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### CalSlashD

[App page](https://appshunter.io/ios/app/calslashd-calorie-countdown/id6784985279)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cal/d Plus | $9.99 | one-time |


## Frequently asked questions

### Is BumFit free?

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

### Is CalSlashD free?

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

### Do BumFit or CalSlashD have ads?

Neither BumFit nor CalSlashD shows ads.

### Which is updated more often, BumFit or CalSlashD?

BumFit ships an update monthly, and CalSlashD every 2 days. Most recently, BumFit was updated on October 30, 2026 and CalSlashD 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.*