# Microwave Link Calculator vs TLK SmartLock

The clearest difference is in-app purchases: TLK SmartLock at none against Microwave Link Calculator's 13. TLK SmartLock also leads on iOS requirement (12.0 vs 17.0). Microwave Link Calculator's advantage is update cadence (every 9 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Microwave Link Calculator sells 13 in-app purchases, starting at $1.99 per month. TLK SmartLock asks for nothing beyond the download.

Microwave Link Calculator ships an update every 9 days, TLK SmartLock every 3 months. The most recent releases landed on June 4, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Microwave Link Calculator | TLK SmartLock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | Subscription | — |
| Size | 16 MB | 41 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tien Hoang](https://appshunter.io/developer/1743631038) | [C3Ware MultiCall Technologies Private Limited](https://appshunter.io/developer/1441765777) |

## What reviewers say

### Microwave Link Calculator

[App page](https://appshunter.io/ios/app/microwave-link-calculator/id6499489507)

This tool helps telecommunications engineers calculate and optimize microwave links. It provides precise distance, azimuth, and elevation computations, antenna configuration, and integrated mapping for accurate outdoor equipment placement.

**Highlights:** Precise distance, azimuth, and elevation calculations, Fresnel Zone computation, Antenna down tilt and azimuth determination, Antenna gain and received power prediction, Integrated Apple Maps view, Obstacle simulation for elevation profiles, Compass with haptic feedback

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $1.99 | per month |
| All Access | $2.99 | per month |
| All Access | $2.99 | per month |
| All Access | $2.99 | per month |
| All access. | $4.99 | per year |
| All access | $4.99 | per month |
| All access | $7.99 | per 3 months |
| All Access | $15.99 | per 6 months |
| All Access | $15.99 | per 6 months |
| All access | $24.99 | per 6 months |
| All access | $29.99 | per year |
| All Access | $29.99 | per year |
| All Access | $29.99 | per year |


### TLK SmartLock

[App page](https://appshunter.io/ios/app/tlk-smartlock/id6736612140)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Microwave Link Calculator free?

Microwave Link Calculator is free to download, with in-app purchases available.

### Is TLK SmartLock free?

TLK SmartLock is free to download, with no in-app purchases.

### Do Microwave Link Calculator or TLK SmartLock have ads?

Neither Microwave Link Calculator nor TLK SmartLock shows ads.

### Which is updated more often, Microwave Link Calculator or TLK SmartLock?

Microwave Link Calculator ships an update every 9 days, and TLK SmartLock every 3 months. Most recently, Microwave Link Calculator was updated on June 4, 2026 and TLK SmartLock on September 10, 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.*