# BTS vs Sphere.io

The clearest difference is in-app purchases: Sphere.io at none against BTS's 1. Sphere.io also leads on ads (none vs shown). BTS's advantage is update cadence (every 3 days vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. BTS sells 1 in-app purchase, starting at $199.00 per year. Sphere.io asks for nothing beyond the download.

BTS ships an update every 3 days, Sphere.io every 5 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BTS | Sphere.io |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 9 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MULTIICON IDEOTECHNOLOGY PRIVATE LIMITED](https://appshunter.io/developer/1138372599) | [NIL BRUNO GOUA](https://appshunter.io/developer/1883318379) |

## What reviewers say

### BTS

[App page](https://appshunter.io/ios/app/bts-backtest-strategy/id6756357363)

Explore historical strategy performance across global markets without live trading. Analyze trends, risk, and consistency with detailed backtesting insights. Upgrade for an ad-free experience and faster processing.

**Highlights:** Historical backtesting, Strategy analytics, Performance trend analysis, Risk behavior analysis, Multi-market coverage, Save and share strategies, Ad-free premium option

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Premium Plan | $199.00 | per year |


### Sphere.io

[App page](https://appshunter.io/ios/app/sphereio/id6760218871)

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

**In-app purchases:** none


## Frequently asked questions

### Is BTS free?

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

### Is Sphere.io free?

Sphere.io is free to download, with no in-app purchases.

### Do BTS or Sphere.io have ads?

BTS shows ads; Sphere.io does not.

### Which is updated more often, BTS or Sphere.io?

BTS ships an update every 3 days, and Sphere.io every 5 weeks. Most recently, BTS was updated on October 30, 2026 and Sphere.io on November 5, 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.*