# Ullman Indirect vs SPECTRUM 2025

The clearest difference is price: SPECTRUM 2025 at Free against Ullman Indirect's $3.99. SPECTRUM 2025 also leads on iOS requirement (13.0 vs 17.2). Ullman Indirect's advantage is update cadence (every 5 weeks vs every 6 months) and chart position (#168 vs unranked). On ads, in-app purchases and device support there is nothing between them.

SPECTRUM 2025 is free to download; Ullman Indirect costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ullman Indirect ships an update every 5 weeks, SPECTRUM 2025 every 6 months. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Ullman Indirect | SPECTRUM 2025 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.1 (10 ratings)](https://appshunter.io/ios/app/ullman-indirect/id1243282866/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 53.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Paid | — |
| Best chart rank | **#168** | — |
| Size | 1 MB | 49 MB |
| Requires iOS | 17.2 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [My Call Bag LLC](https://appshunter.io/developer/1243282862) | [Sai Krishnan](https://appshunter.io/developer/756727006) |

## What reviewers say

### Ullman Indirect

[App page](https://appshunter.io/ios/app/ullman-indirect/id1243282866)

**Currently charting:** #168 Top Paid · Medical (US App Store)

Capture high-quality fundus photos using your iPhone. Control focus, exposure, and light intensity, and quickly add labels to your images. This tool is intended for educational purposes.

**Highlights:** Capture high-quality fundus photos, Control focus, exposure, and light, Add labels to images, Smartphone fundoscopy tool, Educational purposes

**Features:** Vision Pro support

**In-app purchases:** none


### SPECTRUM 2025

[App page](https://appshunter.io/ios/app/spectrum-2025/id6739062864)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ullman Indirect free?

Ullman Indirect costs $3.99, with no in-app purchases.

### Is SPECTRUM 2025 free?

SPECTRUM 2025 is free to download, with no in-app purchases.

### Do Ullman Indirect or SPECTRUM 2025 have ads?

Neither Ullman Indirect nor SPECTRUM 2025 shows ads.

### Which is updated more often, Ullman Indirect or SPECTRUM 2025?

Ullman Indirect ships an update every 5 weeks, and SPECTRUM 2025 every 6 months. Most recently, Ullman Indirect was updated on October 26, 2026 and SPECTRUM 2025 on October 28, 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.*