# TRASOL vs CaliUp (Legacy)

The clearest difference is in-app purchases: CaliUp (Legacy) at none against TRASOL's 1. CaliUp (Legacy) also leads on update cadence (fortnightly vs every 10 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TRASOL sells 1 one-off in-app purchase. CaliUp (Legacy) asks for nothing beyond the download.

TRASOL ships an update every 10 months, CaliUp (Legacy) fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | TRASOL | CaliUp (Legacy) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (42 ratings)](https://appshunter.io/ios/app/trasol/id1015112834/reviews)** | — |
| Number of ratings | **42** | — |
| Positive reviews | 52.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 24 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Desert Tech](https://appshunter.io/developer/1015112833) | [MICHELE BOMBARDI](https://appshunter.io/developer/1156097581) |

## What reviewers say

### TRASOL

[App page](https://appshunter.io/ios/app/trasol/id1015112834)

This advanced ballistic calculator provides real-time environmental data and trajectory predictions for precision shooting. It features a heads-up display for automatic target solutions, moving target tracking, and shot logging capabilities.

**Highlights:** Real-time sensor integration, Heads-up display (HUD), Moving target tracking, Unlimited equipment profiles, Cloud backup/sync, Long-range accuracy up to 5000 yards, Scope turret calibration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full TRASOL Upgrade | $39.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface
- 🎯 Very accurate calculations
- 🚀 Quick to operate
- ✨ Great new interface
- 💯 Best ballistic calculator

**What reviewers complain about**

- 💰 Forced upgrade prompts
- 💸 Trial version limited
- ❌ Free version expires
- 📉 Inaccurate data
- 🚫 Pressure input limited

**Reported bugs**

- Elevation off maps is incorrect
- Pressure (Inhg) does not go below 25.00
- App crashes when getting environmental info
- Cannot count results in Europe
- Purchase restore was broken

**Requested features**

- Add powder temperature capability
- Ability to print ballistics table
- Add effect of powder temperature on muzzle velocity
- Ability to import data from Kestrel
- Dark mode option


### CaliUp (Legacy)

[App page](https://appshunter.io/ios/app/caliup-legacy/id1279832080)

**In-app purchases:** none


## Frequently asked questions

### Is TRASOL free?

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

### Is CaliUp (Legacy) free?

CaliUp (Legacy) is free to download, with no in-app purchases.

### Do TRASOL or CaliUp (Legacy) have ads?

Neither TRASOL nor CaliUp (Legacy) shows ads.

### Which is updated more often, TRASOL or CaliUp (Legacy)?

TRASOL ships an update every 10 months, and CaliUp (Legacy) fortnightly. Most recently, TRASOL was updated on November 6, 2026 and CaliUp (Legacy) on November 3, 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.*