# iSolution OnTime vs Daily Invoice Generator

The clearest difference is in-app purchases: iSolution OnTime at none against Daily Invoice Generator's 2. iSolution OnTime also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Daily Invoice Generator sells 2 in-app purchases, starting at $3.99 per month. iSolution OnTime asks for nothing beyond the download.

iSolution OnTime ships an update every 10 days, Daily Invoice Generator every 3 weeks. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | iSolution OnTime | Daily Invoice Generator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Size | 38 MB | 22 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [INVENTION SOLUTIONS INFORMATION TECHNOLOGY CO. LTD](https://appshunter.io/developer/1681462631) | [Hokfam Ltd](https://appshunter.io/developer/1823223269) |

## What reviewers say

### iSolution OnTime

[App page](https://appshunter.io/ios/app/isolution-ontime/id6447630517)

**Features:** macOS Compatibility

**In-app purchases:** none


### Daily Invoice Generator

[App page](https://appshunter.io/ios/app/daily-invoice-generator/id6751293062)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InvoiceMaker Premium Monthly | $3.99 | per month |
| InvoiceMaker Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is iSolution OnTime free?

iSolution OnTime is free to download, with no in-app purchases.

### Is Daily Invoice Generator free?

Daily Invoice Generator is free to download, with in-app purchases available.

### Do iSolution OnTime or Daily Invoice Generator have ads?

Neither iSolution OnTime nor Daily Invoice Generator shows ads.

### Which is updated more often, iSolution OnTime or Daily Invoice Generator?

iSolution OnTime ships an update every 10 days, and Daily Invoice Generator every 3 weeks. Most recently, iSolution OnTime was updated on September 9, 2026 and Daily Invoice Generator on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*