# Sifter vs SunForm

The clearest difference is price: SunForm at Free against Sifter's $2.99. SunForm also leads on rating (5.0 vs 4.1) and update cadence (every 10 days vs every 3 months). Sifter's advantage is in-app purchases (none vs 2) and ratings volume (116 vs 1). On ads and device support there is nothing between them.

SunForm is free to download; Sifter costs $2.99 up front. SunForm sells 2 in-app purchases, starting at $0.99 per month. Sifter asks for nothing beyond the download.

SunForm holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Sifter has 116 ratings behind it against 1, so its average is the more settled of the two.

Sifter ships an update every 3 months, SunForm every 10 days. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Sifter | SunForm |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.1 (116 ratings)](https://appshunter.io/ios/app/sifter-spam-sms-filter/id1265348258/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sunform-quotation-and-bookkeeping/id6740758231/reviews)** |
| Number of ratings | **116** | 1 |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | **Paid** | Subscription |
| Best chart rank | **#183** | — |
| Size | 10 MB | 31 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [磊 汪](https://appshunter.io/developer/1063627762) | [Guangzhou Yeion Network Technology Co., Ltd](https://appshunter.io/developer/1573912038) |

## What reviewers say

### Sifter

[App page](https://appshunter.io/ios/app/sifter-spam-sms-filter/id1265348258)

**Currently charting:** #183 Top Paid · Utilities (US App Store)

This app provides a smart spam filter for iOS devices, allowing users to create personalized rules to block unwanted text messages. It prioritizes user privacy with local processing and offers advanced filtering options like regular expressions.

**Highlights:** Customizable filtering rules, Blacklist and whitelist contacts, Regex filtering for advanced control, Local data processing for privacy, Blocks unwanted SMS and MMS

**In-app purchases:** none


### SunForm

[App page](https://appshunter.io/ios/app/sunform-quotation-and-bookkeeping/id6740758231)

Streamline business operations by quickly generating professional receipts, quotations, and other essential documents. Manage finances, create custom reports, and avoid manual spreadsheet work with pre-built templates and an intuitive interface.

**Highlights:** Create receipts, quotations, and purchase orders, Manage business finances, Generate customizable reports, Pre-built document templates, Dark and light theme support, Export and print documents

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 野离子表单月会员 | $0.99 | per month |
| 野离子表单年会员 | $6.99 | per year |


## Frequently asked questions

### Is Sifter free?

Sifter costs $2.99, with no in-app purchases.

### Is SunForm free?

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

### Which has better reviews, Sifter or SunForm?

SunForm is rated higher. Sifter averages 4.1 out of 5 from 116 ratings, while SunForm averages 5.0 from 1 ratings.

### Do Sifter or SunForm have ads?

Neither Sifter nor SunForm shows ads.

### Which is updated more often, Sifter or SunForm?

Sifter ships an update every 3 months, and SunForm every 10 days. Most recently, Sifter was updated on November 6, 2026 and SunForm on November 4, 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.*