# Second Memory vs SMART BMS Pro

The clearest difference is in-app purchases: SMART BMS Pro at none against Second Memory's 3. SMART BMS Pro also leads on update cadence (every 10 days vs every 9 months) and iOS requirement (12.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Second Memory sells 3 one-off in-app purchases. SMART BMS Pro asks for nothing beyond the download.

Second Memory ships an update every 9 months, SMART BMS Pro every 10 days. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Second Memory | SMART BMS Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/smart-bms-pro/id6747797943/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 1 MB | 122 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Apptown Studio AB](https://appshunter.io/developer/330530757) | [所兵 邱](https://appshunter.io/developer/1519230775) |

## What reviewers say

### Second Memory

[App page](https://appshunter.io/ios/app/second-memory/id1476374852)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Storage of 50 extra memories | $0.99 | one-time |
| Storage of 100 extra memories | $1.99 | one-time |
| Unlimited storage of memories | $2.99 | one-time |


### SMART BMS Pro

[App page](https://appshunter.io/ios/app/smart-bms-pro/id6747797943)

Connect to and manage lithium battery packs via Bluetooth. Monitor battery status, set protection parameters with password access, and receive fault alarms. Ideal for users needing detailed battery pack oversight.

**Highlights:** Bluetooth connection for battery packs, Real-time battery status monitoring, Set and secure protection parameters, Monitor battery fault alarms, Password protection for modifications

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

**In-app purchases:** none


## Frequently asked questions

### Is Second Memory free?

Second Memory is free to download, with in-app purchases available.

### Is SMART BMS Pro free?

SMART BMS Pro is free to download, with no in-app purchases.

### Do Second Memory or SMART BMS Pro have ads?

Neither Second Memory nor SMART BMS Pro shows ads.

### Which is updated more often, Second Memory or SMART BMS Pro?

Second Memory ships an update every 9 months, and SMART BMS Pro every 10 days. Most recently, Second Memory was updated on October 4, 2026 and SMART BMS Pro on September 30, 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.*