# Spark Systems vs OFW PadaLog

The clearest difference is in-app purchases: Spark Systems at none against OFW PadaLog's 2. Spark Systems also leads on update cadence (monthly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. OFW PadaLog sells 2 in-app purchases, starting at $4.99 per year. Spark Systems asks for nothing beyond the download.

Spark Systems ships an update monthly, OFW PadaLog every 5 months. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Spark Systems | OFW PadaLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Size | 26 MB | 63 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Spark Systems Pte. Ltd.](https://appshunter.io/developer/1433658743) | [John Lawrence Salvador](https://appshunter.io/developer/1833181933) |

## What reviewers say

### Spark Systems

[App page](https://appshunter.io/ios/app/spark-systems/id1433658744)

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

**In-app purchases:** none


### OFW PadaLog

[App page](https://appshunter.io/ios/app/ofw-padalog/id6751030093)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OFW PadaLog Pro Yearly | $4.99 | per year |
| OFW PadaLog Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Spark Systems free?

Spark Systems is free to download, with no in-app purchases.

### Is OFW PadaLog free?

OFW PadaLog is free to download, with in-app purchases available.

### Do Spark Systems or OFW PadaLog have ads?

Neither Spark Systems nor OFW PadaLog shows ads.

### Which is updated more often, Spark Systems or OFW PadaLog?

Spark Systems ships an update monthly, and OFW PadaLog every 5 months. Most recently, Spark Systems was updated on October 23, 2026 and OFW PadaLog on October 8, 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.*