# ChartFight SP vs Double View

The clearest difference is price: Double View at Free against ChartFight SP's $0.99. Double View also leads on rating (4.5 vs 4.0) and update cadence (every 4 months vs every 8 months). ChartFight SP's advantage is in-app purchases (none vs 2) and review sentiment (72% vs 55%). On ratings volume, ads and device support there is nothing between them.

Double View is free to download; ChartFight SP costs $0.99 up front. Double View sells 2 one-off in-app purchases. ChartFight SP asks for nothing beyond the download.

Double View holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 5 and 6 respectively. Written reviews complicate that: 72% of ChartFight SP's written reviews are positive against 55% of Double View's, so the app with the better star average is not the one people write more warmly about.

ChartFight SP ships an update every 8 months, Double View every 4 months. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | ChartFight SP | Double View |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/chartfight-sp/id299878026/reviews) | **[4.5 (6 ratings)](https://appshunter.io/ios/app/double-view-the-impossible-puzzle-game/id660847060/reviews)** |
| Number of ratings | 5 | **6** |
| Positive reviews | **72.0% of reviews** | 54.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 14 MB | 42 MB |
| Requires iOS | 15.0 | **6.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Evenblij](https://appshunter.io/developer/286569767) | [TPG TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/444343830) |

## What reviewers say

### ChartFight SP

[App page](https://appshunter.io/ios/app/chartfight-sp/id299878026)

Engage in epic naval battles of the Age of Sail. Command historical ships, utilize nautical charts, and outmaneuver your opponents with strategic positioning and cannon fire. Experience a classic strategy game with a charmingly retro interface.

**Highlights:** Age of Sail naval combat, Ships-of-the-line, corvettes, brigantines, Nautical chart access, Bird's eye view of battleships, Push-button cannon fire, Classic strategy gameplay

**In-app purchases:** none


### Double View

[App page](https://appshunter.io/ios/app/double-view-the-impossible-puzzle-game/id660847060)

Control two squares simultaneously across different screen layouts, navigating obstacles and reaching the finish line. This unique puzzle game challenges your concentration and motor skills with addictive gameplay and retro graphics.

**Highlights:** Dual screen control, Obstacle avoidance, Key and portal mechanics, Addictive gameplay, Retro graphics

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 hints | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is ChartFight SP free?

ChartFight SP costs $0.99, with no in-app purchases.

### Is Double View free?

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

### Which has better reviews, ChartFight SP or Double View?

Double View is rated higher. ChartFight SP averages 4.0 out of 5 from 5 ratings, while Double View averages 4.5 from 6 ratings.

### Do ChartFight SP or Double View have ads?

Neither ChartFight SP nor Double View shows ads.

### Which is updated more often, ChartFight SP or Double View?

ChartFight SP ships an update every 8 months, and Double View every 4 months. Most recently, ChartFight SP was updated on October 31, 2026 and Double View on November 1, 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.*