# UpDown vs Bigger Butt in 30 Days

The clearest difference is ratings volume: Bigger Butt in 30 Days at 993 against UpDown's 16. Bigger Butt in 30 Days also leads on rating (4.7 vs 4.4) and iOS requirement (15.6 vs 17.0). UpDown's advantage is update cadence (every 4 weeks vs every 2 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. UpDown sells 3 in-app purchases, starting at $1.99 per month and Bigger Butt in 30 Days sells 7 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Bigger Butt in 30 Days holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Bigger Butt in 30 Days has 993 ratings behind it against 16, so its average is the more settled of the two. Written reviews complicate that: 86% of UpDown's written reviews are positive against 78% of Bigger Butt in 30 Days's, so the app with the better star average is not the one people write more warmly about.

UpDown ships an update every 4 weeks, Bigger Butt in 30 Days every 2 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | UpDown | Bigger Butt in 30 Days |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (16 ratings)](https://appshunter.io/ios/app/updown-weight-tracker/id1167706233/reviews) | **[4.7 (993 ratings)](https://appshunter.io/ios/app/bigger-butt-in-30-days/id1367803492/reviews)** |
| Number of ratings | 16 | **993** |
| Positive reviews | **85.7% of reviews** | 78.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 2 months |
| Monetization | Freemium | Freemium |
| Size | 4 MB | 543 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergei Ivanov](https://appshunter.io/developer/932468091) | [Takalogy Limited](https://appshunter.io/developer/1850146775) |

## What reviewers say

### UpDown

[App page](https://appshunter.io/ios/app/updown-weight-tracker/id1167706233)

Track your weight journey with a comprehensive journal that supports multiple family profiles. Visualize progress with charts, calculate BMI, and set reminders. Syncs with Apple Watch and Health for seamless health monitoring.

**Highlights:** Weight journaling, Multiple user profiles, BMI calculation, Progress charts, Reminders, Apple Watch & Health support, CSV export

**Features:** Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (Monthly) | $1.99 | per month |
| PRO Version (Yearly) | $9.99 | per year |
| PRO Version (Lifetime) | $24.99 | one-time |


### Bigger Butt in 30 Days

[App page](https://appshunter.io/ios/app/bigger-butt-in-30-days/id1367803492)

Strengthen and tone your glutes with effective home workouts. This app offers a 30-day plan with guided exercises for all fitness levels, requiring no gym equipment. Track progress and sync data with Apple Health.

**Highlights:** 30-day glute workout plan, 3D personal trainer guidance, No gym equipment needed, HealthKit integration, Suitable for all fitness levels, Videos of exercises

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $7.99 | per month |
| Monthly Subscription | $9.99 | per month |
| Yearly subscription | $29.99 | per year |
| Yearly Subscription | $29.99 | per year |
| Diamond Member | $19.99 | one-time |
| Platinum Member | $29.99 | one-time |
| Lifetime Access - Pay once | $39.99 | one-time |

**What reviewers like**

- 👍 Good workout
- 👍 Effective for results
- 👍 Easy to follow
- 👍 Suitable for beginners
- 👍 Motivating

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔒 Unable to delete account
- 🔒 Subscription issues
- 🔋 Intense for seniors

**Reported bugs**

- Frequent crashes and freezes
- Subscription issues

**Requested features**

- Multiple camera angles for exercises
- Guidance on breathing and muscle engagement
- Localized versions (e.g., Russian)


## Frequently asked questions

### Is UpDown free?

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

### Is Bigger Butt in 30 Days free?

Bigger Butt in 30 Days is free to download, with in-app purchases available.

### Which has better reviews, UpDown or Bigger Butt in 30 Days?

Bigger Butt in 30 Days is rated higher. UpDown averages 4.4 out of 5 from 16 ratings, while Bigger Butt in 30 Days averages 4.7 from 993 ratings.

### Do UpDown or Bigger Butt in 30 Days have ads?

Neither UpDown nor Bigger Butt in 30 Days shows ads.

### Which is updated more often, UpDown or Bigger Butt in 30 Days?

UpDown ships an update every 4 weeks, and Bigger Butt in 30 Days every 2 months. Most recently, UpDown was updated on November 2, 2026 and Bigger Butt in 30 Days on November 6, 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.*