# 足跡 vs Calc Training (30sec)

The clearest difference is review sentiment: Calc Training (30sec) at 72% against 足跡's 35%. 足跡's advantage is update cadence (weekly vs monthly) and device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 足跡 sells 5 in-app purchases, starting at $2.99 per month and Calc Training (30sec) sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

足跡 ships an update weekly, Calc Training (30sec) monthly. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 足跡 | Calc Training (30sec) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/gps/id1345308324/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 34.9% of reviews | **72.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 391 MB | 8 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [Tomohiro Ohwada](https://appshunter.io/developer/991660409) |

## What reviewers say

### 足跡

[App page](https://appshunter.io/ios/app/gps/id1345308324)

Record your travel routes and stay locations automatically. Add notes to your visited places and review your daily activities. Export your history as a CSV file for sharing and backup.

**Highlights:** Record travel routes and stay locations, Add notes to visited places, View daily history, Geofencing for specified locations, Automatic history deletion, Step counter integration, CSV export for sharing and backup

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告停止課金モデル | $2.99 | per month |
| コーヒー (R) | $0.49 | one-time |
| システム改善応援費 | $1.99 | one-time |
| コーヒー (L) | $1.99 | one-time |
| ケーキセット | $5.99 | one-time |


### Calc Training (30sec)

[App page](https://appshunter.io/ios/app/calc-training-30sec/id1547381216)

Sharpen your mental math skills with quick, 30-second training sessions. Practice addition, subtraction, multiplication, and mixed problems to improve your arithmetic speed and accuracy. Track your personal bests and challenge yourself to beat your previous scores.

**Highlights:** 30-second intensive training sessions, Addition practice, Subtraction practice, Multiplication practice, Mixed problem training, Personal best tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Development support | $1.99 | one-time |
| Remove Ads & Support | $2.99 | one-time |


## Frequently asked questions

### Is 足跡 free?

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

### Is Calc Training (30sec) free?

Calc Training (30sec) is free to download, with in-app purchases available.

### Do 足跡 or Calc Training (30sec) have ads?

Both 足跡 and Calc Training (30sec) show ads.

### Which is updated more often, 足跡 or Calc Training (30sec)?

足跡 ships an update weekly, and Calc Training (30sec) monthly. Most recently, 足跡 was updated on October 14, 2026 and Calc Training (30sec) 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.*