# Second Opinion vs SD 2025

The clearest difference is update cadence: SD 2025 at every 3 days against Second Opinion's every 2 weeks. SD 2025 also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Second Opinion ships an update every 2 weeks, SD 2025 every 3 days. The most recent releases landed on September 12, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Second Opinion | SD 2025 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 182 MB | 30 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Second opinion](https://appshunter.io/developer/1678076903) | [Adnan Ashraf](https://appshunter.io/developer/1212120305) |

## What reviewers say

### Second Opinion

[App page](https://appshunter.io/ios/app/second-opinion-doctors/id6590627881)

**Features:** macOS Compatibility

**In-app purchases:** none


### SD 2025

[App page](https://appshunter.io/ios/app/sd-2025/id6740197366)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Second Opinion free?

Second Opinion is free to download, with no in-app purchases.

### Is SD 2025 free?

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

### Do Second Opinion or SD 2025 have ads?

Neither Second Opinion nor SD 2025 shows ads.

### Which is updated more often, Second Opinion or SD 2025?

Second Opinion ships an update every 2 weeks, and SD 2025 every 3 days. Most recently, Second Opinion was updated on September 12, 2026 and SD 2025 on September 18, 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.*