# EV Charging Calculator vs Tto Mongol

The clearest difference is in-app purchases: Tto Mongol at none against EV Charging Calculator's 3. Tto Mongol also leads on update cadence (weekly vs every 2 weeks). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. EV Charging Calculator sells 3 one-off in-app purchases. Tto Mongol asks for nothing beyond the download.

EV Charging Calculator ships an update every 2 weeks, Tto Mongol weekly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | EV Charging Calculator | Tto Mongol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/ev-charging-calculator/id6755452503/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 9 MB | 78 MB |
| Requires iOS | 26.1 | **26.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Daniel Tyler Perry](https://appshunter.io/developer/1738693580) | [Lim Sangjin](https://appshunter.io/developer/1437057653) |

## What reviewers say

### EV Charging Calculator

[App page](https://appshunter.io/ios/app/ev-charging-calculator/id6755452503)

Estimate your EV charging time by inputting battery size, current charge, and charger speed. Get instant calculations for when your vehicle will be ready to drive, supporting various charging levels and global voltages. Save multiple vehicle profiles for households with more than one EV.

**Highlights:** Instant charging time estimates, Smart finish time predictions, Multiple vehicle profiles, Global voltage support, Customizable charger settings, Distraction-free interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Level 1 - Trickle | $1.99 | one-time |
| Level 2 - Fast | $4.99 | one-time |
| Level 3 - DC Fast | $9.99 | one-time |


### Tto Mongol

[App page](https://appshunter.io/ios/app/tto-mongol/id6796793717)

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

**In-app purchases:** none


## Frequently asked questions

### Is EV Charging Calculator free?

EV Charging Calculator is free to download, with in-app purchases available.

### Is Tto Mongol free?

Tto Mongol is free to download, with no in-app purchases.

### Do EV Charging Calculator or Tto Mongol have ads?

Neither EV Charging Calculator nor Tto Mongol shows ads.

### Which is updated more often, EV Charging Calculator or Tto Mongol?

EV Charging Calculator ships an update every 2 weeks, and Tto Mongol weekly. Most recently, EV Charging Calculator was updated on October 24, 2026 and Tto Mongol on October 27, 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.*