# EmberRun Calc vs Supwell

The clearest difference is monetization model: EmberRun Calc at free with in-app purchases against Supwell's subscription. EmberRun Calc also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 78%). Supwell's advantage is update cadence (every 3 days vs every 7 months) and ratings volume (71 vs 2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. EmberRun Calc sells 8 one-off in-app purchases and Supwell sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

EmberRun Calc holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Supwell has 71 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of EmberRun Calc's written reviews are positive against 78% of Supwell's.

EmberRun Calc ships an update every 7 months, Supwell every 3 days. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | EmberRun Calc | Supwell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/emberrun-calc/id6742080044/reviews)** | [4.6 (71 ratings)](https://appshunter.io/ios/app/supwell/id6753905424/reviews) |
| Number of ratings | 2 | **71** |
| Positive reviews | **100.0% of reviews** | 77.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 10 MB | 52 MB |
| Requires iOS | 26.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Brian White](https://appshunter.io/developer/1796708452) | [Supwell Inc](https://appshunter.io/developer/1845610505) |

## What reviewers say

### EmberRun Calc

[App page](https://appshunter.io/ios/app/emberrun-calc/id6742080044)

This app helps runners plan their training, predict race times, and log their progress. It offers quick calculations for pace, distance, and time, with options to save results and customize the interface. Unlock advanced features like race time predictions and iCloud backup with a one-time purchase.

**Highlights:** Pace, time, and distance calculations, Automatic unit conversions, Save and backup race results, Accurate race time predictions, Customizable themes and controls, Age grading percentages

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Race Predictions | $0.99 | one-time |
| Color Themes | $0.99 | one-time |
| Small Tip | $0.99 | one-time |
| Save Results | $2.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Product Launch Bundle | $3.99 | one-time |
| Large Tip | $4.99 | one-time |
| Extra Large Tip | $9.99 | one-time |


### Supwell

[App page](https://appshunter.io/ios/app/supwell/id6753905424)

Discover, buy, and sell running shoes, read in-depth reviews, and track your mileage. Access structured training plans and connect with a community of runners. Syncs with Apple Health for seamless workout tracking.

**Highlights:** Running shoe marketplace, In-depth shoe reviews, Mileage tracking, Structured training plans, Apple Health integration, Community forums

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supwell Monthly Membership | $4.99 | per month |


## Frequently asked questions

### Is EmberRun Calc free?

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

### Is Supwell free?

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

### Which has better reviews, EmberRun Calc or Supwell?

EmberRun Calc is rated higher. EmberRun Calc averages 5.0 out of 5 from 2 ratings, while Supwell averages 4.6 from 71 ratings.

### Do EmberRun Calc or Supwell have ads?

Neither EmberRun Calc nor Supwell shows ads.

### Which is updated more often, EmberRun Calc or Supwell?

EmberRun Calc ships an update every 7 months, and Supwell every 3 days. Most recently, EmberRun Calc was updated on October 19, 2026 and Supwell on October 18, 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.*