# Spider Solitaire vs IMP Calculator

The clearest difference is price: Spider Solitaire at Free against IMP Calculator's $0.99. Spider Solitaire also leads on update cadence (every 3 weeks vs every 13 months) and iOS requirement (13.0 vs 15). IMP Calculator's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Spider Solitaire is free to download; IMP Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Spider Solitaire ships an update every 3 weeks, IMP Calculator every 13 months. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Spider Solitaire | IMP Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.6 (1.9K ratings)](https://appshunter.io/ios/app/spider-solitaire-ace/id6443933664/reviews)** | — |
| Number of ratings | **1.9K** | — |
| Positive reviews | 49.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 13 months |
| Monetization | Free with in-app purchases | — |
| Size | 113 MB | 2 MB |
| Requires iOS | **13.0** | 15 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Conifer Limited](https://appshunter.io/developer/1581751117) | [Patrick Parno](https://appshunter.io/developer/1723783185) |

## What reviewers say

### Spider Solitaire

[App page](https://appshunter.io/ios/app/spider-solitaire-ace/id6443933664)

Experience a classic card game with a modern twist. This app offers a clean design and multiple suit options for engaging solitaire gameplay. Challenge yourself daily and track your progress to become a master.

**Highlights:** Classic Spider Solitaire gameplay, 1, 2, and 4 suit varieties, Daily challenges, Clean and pleasant visual design, Tap to move controls, Offline play, Left-handed support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Relaxing game
- 👍 Horizontal orientation
- 👍 Challenging gameplay

**What reviewers complain about**

- 🐛 Frequent update prompts
- 🔍 Small card size
- 💸 Excessive ads
- 🔄 Forced upgrades

**Reported bugs**

- Game crashes on launch
- Inability to submit reviews

**Requested features**

- Ability to customize background
- Option to select game mode
- Improved card visibility


### IMP Calculator

[App page](https://appshunter.io/ios/app/imp-calculator/id6480327794)

**In-app purchases:** none


## Frequently asked questions

### Is Spider Solitaire free?

Spider Solitaire is free to download, with no in-app purchases.

### Is IMP Calculator free?

IMP Calculator costs $0.99, with no in-app purchases.

### Do Spider Solitaire or IMP Calculator have ads?

Spider Solitaire shows ads; IMP Calculator does not.

### Which is updated more often, Spider Solitaire or IMP Calculator?

Spider Solitaire ships an update every 3 weeks, and IMP Calculator every 13 months. Most recently, Spider Solitaire was updated on October 20, 2026 and IMP Calculator on October 7, 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.*