# Evtimkr vs OT Subnet Calculator

The clearest difference is iOS requirement: Evtimkr at 17.0 against OT Subnet Calculator's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Evtimkr sells 4 in-app purchases, starting at $0.99 per month and OT Subnet Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Evtimkr | OT Subnet Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 8 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Oran Levi](https://appshunter.io/developer/1653309601) | [Dominik Gausmann](https://appshunter.io/developer/1870320985) |

## What reviewers say

### Evtimkr

[App page](https://appshunter.io/ios/app/evtimkr-countdown-to-event/id6743360139)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $0.99 | per month |
| Premium - Half Yearly | $1.99 | per 6 months |
| Premium - Yearly | $2.99 | per year |
| Premium - Lifetime | $4.99 | one-time |


### OT Subnet Calculator

[App page](https://appshunter.io/ios/app/ot-subnet-calculator/id6758581610)

This app offers advanced IP subnet calculations and comprehensive IP address management (IPAM) tools. It helps organize networks, devices, and reservations with features like visual address maps, conflict checks, and collaboration options. Learn network concepts through guides and interactive examples.

**Highlights:** IPv4 subnet calculations, IP address management (IPAM), Network and device organization, Conflict detection, Collaboration via iCloud sync, CSV and PDF reporting, IPv6 exploration

**Features:** macOS Compatibility, Family Sharing, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IP Calc Profi Features | $2.99 | one-time |


## Frequently asked questions

### Is Evtimkr free?

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

### Is OT Subnet Calculator free?

OT Subnet Calculator is free to download, with in-app purchases available.

### Do Evtimkr or OT Subnet Calculator have ads?

Neither Evtimkr nor OT Subnet Calculator shows ads.

### Which is updated more often, Evtimkr or OT Subnet Calculator?

Evtimkr ships an update every 3 weeks, and OT Subnet Calculator every 3 weeks. Most recently, Evtimkr was updated on November 8, 2026 and OT Subnet Calculator on November 5, 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.*