# Luka Smart vs Retirement Countdown+ Tracker

The clearest difference is in-app purchases: Luka Smart at none against Retirement Countdown+ Tracker's 1. Luka Smart also leads on device support (3 vs 1) and iOS requirement (10.0 vs 16.4). Retirement Countdown+ Tracker's advantage is update cadence (every 4 days vs every 2 months). On price and ads there is nothing between them.

Both are free to download. Retirement Countdown+ Tracker sells 1 one-off in-app purchase. Luka Smart asks for nothing beyond the download.

Luka Smart ships an update every 2 months, Retirement Countdown+ Tracker every 4 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Luka Smart | Retirement Countdown+ Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/retirement-countdown-plus-tracker/id6802019447/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 192 MB | 50 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [L&Co Trading Ltd](https://appshunter.io/developer/1595735599) | [Wayne Nixon](https://appshunter.io/developer/6798289541) |

## What reviewers say

### Luka Smart

[App page](https://appshunter.io/ios/app/luka-smart/id1595735597)

**Features:** macOS Compatibility

**In-app purchases:** none


### Retirement Countdown+ Tracker

[App page](https://appshunter.io/ios/app/retirement-countdown-plus-tracker/id6802019447)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock the Full App | $6.99 | one-time |


## Frequently asked questions

### Is Luka Smart free?

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

### Is Retirement Countdown+ Tracker free?

Retirement Countdown+ Tracker is free to download, with in-app purchases available.

### Do Luka Smart or Retirement Countdown+ Tracker have ads?

Neither Luka Smart nor Retirement Countdown+ Tracker shows ads.

### Which is updated more often, Luka Smart or Retirement Countdown+ Tracker?

Luka Smart ships an update every 2 months, and Retirement Countdown+ Tracker every 4 days. Most recently, Luka Smart was updated on October 7, 2026 and Retirement Countdown+ Tracker on October 24, 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.*