# Spark vs slotho

The clearest difference is update cadence: slotho at every 2 weeks against Spark's monthly. Spark's advantage is iOS requirement (15.6 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Spark sells 1 one-off in-app purchase and slotho sells 6 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Spark ships an update monthly, slotho every 2 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Spark | slotho |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/spark-calorie-counter/id715165055/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 69.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 67 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Dmitri Marfin](https://appshunter.io/developer/715165058) | [Luiz Carlos Maia Junior](https://appshunter.io/developer/1582361492) |

## What reviewers say

### Spark

[App page](https://appshunter.io/ios/app/spark-calorie-counter/id715165055)

This offline calorie tracker helps you monitor your daily food intake and body measurements. It features a built-in Russian food database and allows for custom food entries. Sync your progress with Apple Health for a comprehensive overview of your health journey.

**Highlights:** Offline calorie tracking, Built-in Russian food database, Log meals by time, Track body measurements, Add custom foods, Sync with Apple Health

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Awesome calorie counter No Ads | $3.99 | one-time |


### slotho

[App page](https://appshunter.io/ios/app/slotho/id1662327859)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| slotho PRO Lite (Monthly) | $2.99 | per month |
| Slotho Pro (Monthly) | $6.99 | per month |
| slotho PRO+ (Monthly) | $12.99 | per month |
| slotho PRO Lite (Yearly) | $29.99 | per year |
| Slotho Pro (Yearly) | $69.00 | per year |
| slotho PRO+ (Yearly) | $129.99 | per year |


## Frequently asked questions

### Is Spark free?

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

### Is slotho free?

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

### Do Spark or slotho have ads?

Neither Spark nor slotho shows ads.

### Which is updated more often, Spark or slotho?

Spark ships an update monthly, and slotho every 2 weeks. Most recently, Spark was updated on November 1, 2026 and slotho on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*