# SJ Age Calculator vs WISP Radar

The clearest difference is price: SJ Age Calculator at Free against WISP Radar's $4.99. WISP Radar's advantage is in-app purchases (none vs 5) and ads (none vs shown). On rating, ratings volume, update cadence and device support there is nothing between them.

SJ Age Calculator is free to download; WISP Radar costs $4.99 up front. SJ Age Calculator sells 5 one-off in-app purchases. WISP Radar asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for SJ Age Calculator against 5.0 for WISP Radar. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

SJ Age Calculator ships an update every 5 days, WISP Radar every 3 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SJ Age Calculator | WISP Radar |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sj-age-calculator/id6563151005/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/wisp-radar/id6752672739/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 3 MB | 5 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Stephane JAILLIARD](https://appshunter.io/developer/1749751077) | [Christopher Josey](https://appshunter.io/developer/1840510926) |

## What reviewers say

### SJ Age Calculator

[App page](https://appshunter.io/ios/app/sj-age-calculator/id6563151005)

Quickly determine a client's age group and associated benefits based on their birth year. Ideal for professionals in industries like travel and hospitality needing to apply age-based rules instantly and accurately.

**Highlights:** Instant age group identification, Display associated rights/benefits, Customizable age groups and ranges, Manage multiple rule profiles, Fast, simple, and efficient design, Clear interface for professional use

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A coffee | $0.99 | one-time |
| A cookie | $2.99 | one-time |
| No ads | $4.99 | one-time |
| A lemon tart | $4.99 | one-time |
| A pizza | $9.99 | one-time |


### WISP Radar

[App page](https://appshunter.io/ios/app/wisp-radar/id6752672739)

This augmented reality app overlays tower locations onto your camera view in real-time. It displays tower distance and azimuth, and allows you to tap for detailed information. Integrates with Google Sheets and cnHeat for efficient tower management.

**Highlights:** Augmented reality tower overlay, Real-time tower distance and azimuth, Tap for tower details, Google Sheets integration, cnHeat integration, Tower list management

**In-app purchases:** none


## Frequently asked questions

### Is SJ Age Calculator free?

SJ Age Calculator is free to download, with in-app purchases available.

### Is WISP Radar free?

WISP Radar costs $4.99, with no in-app purchases.

### Which has better reviews, SJ Age Calculator or WISP Radar?

SJ Age Calculator and WISP Radar are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do SJ Age Calculator or WISP Radar have ads?

SJ Age Calculator shows ads; WISP Radar does not.

### Which is updated more often, SJ Age Calculator or WISP Radar?

SJ Age Calculator ships an update every 5 days, and WISP Radar every 3 days. Most recently, SJ Age Calculator was updated on October 23, 2026 and WISP Radar on October 24, 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.*