# Contacts Sync Pro vs Iodine Code

The clearest difference is review sentiment: Contacts Sync Pro at 88% against Iodine Code's 33%. Contacts Sync Pro also leads on rating (4.7 vs 1.0) and ratings volume (811 vs 3). Iodine Code's advantage is in-app purchases (none vs 4) and price ($4.99 vs $9.99). On update cadence, ads and device support there is nothing between them.

Contacts Sync Pro costs $9.99 and Iodine Code $4.99 up front. Contacts Sync Pro sells 4 one-off in-app purchases. Iodine Code asks for nothing beyond the download.

Contacts Sync Pro holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Contacts Sync Pro has 811 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 88% of Contacts Sync Pro's written reviews are positive against 33% of Iodine Code's.

Contacts Sync Pro ships an update every 3 months, Iodine Code every 4 months. The most recent releases landed on October 20, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Contacts Sync Pro | Iodine Code |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Rating | **[4.7 (811 ratings)](https://appshunter.io/ios/app/contacts-sync-pro/id686378579/reviews)** | [1.0 (3 ratings)](https://appshunter.io/ios/app/iodine-code/id1350643087/reviews) |
| Number of ratings | **811** | 3 |
| Positive reviews | **87.6% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#167** | — |
| Size | 42 MB | 14 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Playa Apps](https://appshunter.io/developer/449814913) | [典 熊](https://appshunter.io/developer/812126908) |

## What reviewers say

### Contacts Sync Pro

[App page](https://appshunter.io/ios/app/contacts-sync-pro/id686378579)

**Currently charting:** #167 Top Paid · Productivity (US App Store)

Effortlessly synchronize your contacts across Google, iCloud, and Outlook. This reliable app ensures your contact information is up-to-date on your iPhone, supporting two-way syncing and preserving all contact details and groups.

**Highlights:** Sync Google, iCloud, and Outlook contacts, Two-way and one-way sync options, Syncs all contact fields and photos, Preserves Google labels and Outlook categories, Automatic background syncing, Duplicate contact elimination, Confirm changes before syncing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Syncs | Free | one-time |
| Automatic Contact Syncing | Free | one-time |
| Make Contribution | $4.99 | one-time |
| Make Larger Contribution | $9.99 | one-time |

**What reviewers like**

- 🚀 Works flawlessly
- 👍 Easy to use
- 🚀 Reliable and accurate
- 🚀 Keeps contacts in sync
- 👍 Excellent responsiveness from developer

**What reviewers complain about**

- 🐛 UX has subtly changed for the worse
- 🐛 Confusing to use for just syncing one contact
- 🐛 Doesn't sync Gmail groups

**Reported bugs**

- Caused massive increase in number of contacts
- Eliminated all existing contacts

**Requested features**

- Improved handling of duplicate contacts
- Better side-by-side comparison of contacts


### Iodine Code

[App page](https://appshunter.io/ios/app/iodine-code/id1350643087)

A mobile code editor and Git tool that allows you to code, stage, commit, and push directly from your iPhone or iPad. It features syntax highlighting, code suggestions, and a diff viewer for a seamless coding experience.

**Highlights:** Powerful Git tool, Multi-tab code editor, Diff viewer, Project file manager, Syntax highlighting, Code suggestion

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

**In-app purchases:** none


## Frequently asked questions

### Is Contacts Sync Pro free?

Contacts Sync Pro costs $9.99, and also offers in-app purchases.

### Is Iodine Code free?

Iodine Code costs $4.99, with no in-app purchases.

### Which has better reviews, Contacts Sync Pro or Iodine Code?

Contacts Sync Pro is rated higher. Contacts Sync Pro averages 4.7 out of 5 from 811 ratings, while Iodine Code averages 1.0 from 3 ratings.

### Do Contacts Sync Pro or Iodine Code have ads?

Neither Contacts Sync Pro nor Iodine Code shows ads.

### Which is updated more often, Contacts Sync Pro or Iodine Code?

Contacts Sync Pro ships an update every 3 months, and Iodine Code every 4 months. Most recently, Contacts Sync Pro was updated on October 20, 2026 and Iodine Code on October 2, 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.*