# Half Marathon vs 1SecondLap

The clearest difference is in-app purchases: 1SecondLap at none against Half Marathon's 7. 1SecondLap also leads on update cadence (daily vs every 3 months). Half Marathon's advantage is iOS requirement (13.4 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Half Marathon sells 7 in-app purchases, starting at $0.99 per 7 days. 1SecondLap asks for nothing beyond the download.

Half Marathon ships an update every 3 months, 1SecondLap daily. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Half Marathon | 1SecondLap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (254 ratings)](https://appshunter.io/ios/app/half-marathon-21k-run-app/id1435474702/reviews)** | — |
| Number of ratings | **254** | — |
| Positive reviews | 18.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 9 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Rumble](https://appshunter.io/developer/1368434055) | [DOCUEX LIMITED](https://appshunter.io/developer/6783314970) |

## What reviewers say

### Half Marathon

[App page](https://appshunter.io/ios/app/half-marathon-21k-run-app/id1435474702)

Train for your first 21K run with a comprehensive 12-week program. This app offers audio coaching, interval planning, and motivational tips to build strength and endurance. Track your progress, earn badges, and share achievements with friends.

**Highlights:** 12-week running program, Audio coach guidance, Run/walk strategy, Integrated music player, Progress tracking and sharing, Motivational quotes, GPS and distance tracking

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| 21k Run Monthly New | $1.99 | per month |
| Weekly Subscription | $1.99 | per 7 days |
| 21K Run Trainer (Weekly) | $2.99 | per 7 days |
| Half Marathon Workout Plan | $29.99 | per year |
| Half marathon program | $37.99 | per 6 months |
| 21k Run Life Time | $39.99 | one-time |

**What reviewers like**

- 👍 Great app overall
- 🌟 Likes badges and challenges

**What reviewers complain about**

- 🐛 App stops tracking activity
- 🐛 Pauses during phone calls
- 🐛 GPS not working
- 🐛 Cannot change training level
- 🐛 Music not working

**Reported bugs**

- 🐛 Daily activity stops when switching apps
- 🐛 App pauses during phone calls and forgets to resume
- 🐛 GPS not functioning, reporting 0.0 meters pace
- 🐛 Premium member cannot change training level
- 🐛 Music playback issues

**Requested features**

- 💡 Better looking badges
- 💡 Option to set race date for customized training
- 💡 Ability to edit distance after workout
- 💡 Fix settings page scrolling issue
- 💡 Option to set preferred food types for meal plan


### 1SecondLap

[App page](https://appshunter.io/ios/app/1secondlap/id6783314968)

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

**In-app purchases:** none


## Frequently asked questions

### Is Half Marathon free?

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

### Is 1SecondLap free?

1SecondLap is free to download, with no in-app purchases.

### Do Half Marathon or 1SecondLap have ads?

Neither Half Marathon nor 1SecondLap shows ads.

### Which is updated more often, Half Marathon or 1SecondLap?

Half Marathon ships an update every 3 months, and 1SecondLap daily. Most recently, Half Marathon was updated on October 24, 2026 and 1SecondLap on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*