# Call Checker vs Invoice Suite

The clearest difference is in-app purchases: Call Checker at none against Invoice Suite's 10. Invoice Suite's advantage is update cadence (monthly vs every 23 months) and review sentiment (14% vs 0%). On price, ads, device support and iOS requirement there is nothing between them.

Call Checker costs $0.99 and Invoice Suite $0.99 up front. Invoice Suite sells 10 one-off in-app purchases. Call Checker asks for nothing beyond the download.

Call Checker ships an update every 23 months, Invoice Suite monthly. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Call Checker | Invoice Suite |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/invoice-suite/id465587615/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **14.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 64 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Manu Gupta](https://appshunter.io/developer/806110625) |

## What reviewers say

### Call Checker

[App page](https://appshunter.io/ios/app/call-checker/id292434428)

Easily track the local times of your international contacts to avoid calling at inconvenient hours. Quickly see who is available and initiate calls directly from the app.

**Highlights:** Track contact local times, Avoid bad calling hours, Check contact availability, Initiate calls directly (iPhone)

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

**In-app purchases:** none


### Invoice Suite

[App page](https://appshunter.io/ios/app/invoice-suite/id465587615)

Create and send professional invoices and estimates quickly from your mobile device. The app automates tax and total calculations, offers various invoice styles, and allows instant email delivery to clients for faster payments.

**Highlights:** Create invoices and estimates, Manage invoices on the go, Professional invoice styles, Automatic tax and total calculation, Instant email delivery to clients, Save and reuse invoices

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Generate and Email PDF | $0.99 | one-time |
| Email 10 Pdfs | $0.99 | one-time |
| Message PDF via SMS | $0.99 | one-time |
| Save 10 PDF in iBooks and Evernote | $0.99 | one-time |
| 10 times Save as, Print and Email | $0.99 | one-time |
| Email 25 Pdfs | $1.99 | one-time |
| Email 100 Pdfs | $3.99 | one-time |
| 500 times Save as, Print  and Email | $4.99 | one-time |
| 1000 times Save as, Print  and Email | $6.99 | one-time |
| Email 500 Pdfs | $9.99 | one-time |


## Frequently asked questions

### Is Call Checker free?

Call Checker costs $0.99, with no in-app purchases.

### Is Invoice Suite free?

Invoice Suite costs $0.99, and also offers in-app purchases.

### Do Call Checker or Invoice Suite have ads?

Neither Call Checker nor Invoice Suite shows ads.

### Which is updated more often, Call Checker or Invoice Suite?

Call Checker ships an update every 23 months, and Invoice Suite monthly. Most recently, Call Checker was updated on October 9, 2026 and Invoice Suite on October 15, 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.*