# OPT7 GLOW vs Retirement Countdown+ Tracker

The clearest difference is in-app purchases: OPT7 GLOW at none against Retirement Countdown+ Tracker's 1. OPT7 GLOW also leads on iOS requirement (11.0 vs 16.4). Retirement Countdown+ Tracker's advantage is update cadence (every 2 days vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Retirement Countdown+ Tracker sells 1 one-off in-app purchase. OPT7 GLOW asks for nothing beyond the download.

OPT7 GLOW ships an update every 4 months, Retirement Countdown+ Tracker every 2 days. The most recent releases landed on June 1, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | OPT7 GLOW | Retirement Countdown+ Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (9 ratings)](https://appshunter.io/ios/app/opt7-glow/id6475662855/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 339 MB | 50 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [W Group](https://appshunter.io/developer/1423370524) | [Wayne Nixon](https://appshunter.io/developer/6798289541) |

## What reviewers say

### OPT7 GLOW

[App page](https://appshunter.io/ios/app/opt7-glow/id6475662855)

Control various RGB lighting products, including strips, bulbs, and in-vehicle lights. Adjust color, brightness, and dynamic modes. Supports music synchronization via local files or device microphone.

**Highlights:** Control RGB strip lights, Control RGBIC strip lights, Control RGB bulbs, Control in-vehicle RGB lights, Adjust color and lightness, Select dynamic modes and rhythm styles, Music synchronization

**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 OPT7 GLOW free?

OPT7 GLOW 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 OPT7 GLOW or Retirement Countdown+ Tracker have ads?

Neither OPT7 GLOW nor Retirement Countdown+ Tracker shows ads.

### Which is updated more often, OPT7 GLOW or Retirement Countdown+ Tracker?

OPT7 GLOW ships an update every 4 months, and Retirement Countdown+ Tracker every 2 days. Most recently, OPT7 GLOW was updated on June 1, 2026 and Retirement Countdown+ Tracker on October 1, 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.*