Sifter vs SunForm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sifter
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.
- Customizable filtering rules
- Blacklist and whitelist contacts
- Regex filtering for advanced control
- Local data processing for privacy
- Blocks unwanted SMS and MMS
Read full descriptionHide full description
Reclaim your inbox with Sifter, the intelligent and private SMS filter for iOS. Powered by a robust Message Filter extension and secure on-device processing, Sifter gives you absolute control over your messaging experience without compromising your privacy. FOCUS ON WHAT MATTERS Sifter empowers you to design personalized filtering rules to block unwanted texts while keeping your inbox clean and focused. With a refined interface built for speed and clarity, managing your rules is seamless and efficient. KEY FEATURES - RULE-BASED CATEGORIZATION: Easily filter and organize messages into Transactions and Promotions using your own custom rules. - GRANULAR FILTERING: Tailor your protection with specific rules. From simple keywords to sophisticated patterns, you decide exactly what reaches your notification center. - CONTACT MANAGEMENT: Protect your peace of mind by whitelisting trusted contacts or blacklisting specific numbers and entire contact lists. - ADVANCED REGEX ENGINE: Leverage the power of Regular Expressions to create intricate, high-precision filtering rules for complex messaging patterns. - PRIVACY-FIRST ARCHITECTURE: Sifter operates entirely locally on your device. Your messages never leave your phone, ensuring your personal data remains 100% private. SUPPORTED RULE TYPES - Whitelist and Blacklist Users (Contacts/Numbers) - Whitelist and Blacklist Keywords - Transactional and Promotional Categorization - Regex-powered versions of all the above Sifter is your personal gatekeeper. Whether you are blocking marketing noise or organizing important transactional alerts, Sifter provides a private and powerful solution to keep your messaging focused on what truly matters. Download Sifter and take full control over your inbox.
SunForm
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.
- 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
Read full descriptionHide full description
SunForm helps you quickly create receipts, quotations, purchase orders, delivery notes, and more. You can also manage your finances, generate reports, and print documents — all in just a few easy steps. No need to build spreadsheets manually — effortlessly create and share professional forms and reports. Why choose Wild Ion Forms: - No learning curve — create forms and tables in minutes - Pre-built templates — one-tap creation for various needs - Fast and simple form filling — export or print with ease - Customizable data summaries — get a clear overview of your business - Supports both dark and light themes ... We care deeply about your experience. For feedback or support, feel free to contact our live support team or email us at pengappdev@qq.com. Some features of this app require a monthly auto-renewable subscription. [Auto-Renewable Subscription Details] Subscription Period: 1 month Price: As displayed within the app Payment: Payment will be charged to your iTunes Store account upon confirmation of purchase Auto-Renewal: Subscription will automatically renew within 24 hours prior to the end of the current period, and you will be charged for the next period Cancellation: You can cancel the subscription at least 24 hours before the end of the current period by turning off auto-renewal in your Apple ID settings Privacy Policy: https://www.yelizi.suntable.cn/yeiontable/privacyios Terms of Use: https://www.yelizi.suntable.cn/yeiontable/term
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Sifter | SunForm |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.1 (116 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 28.6% of reviews | — |
| Number of ratings | 116 — better | 1 |
| Update frequency | Every 3 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid — better | Subscription |
| Best chart rank | #183 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 10 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | 磊 汪 | Guangzhou Yeion Network Technology Co., Ltd |
Customer experience
Sifter
SunForm
In-app purchases
Sifter
No in-app purchases
SunForm
- 野离子表单月会员$0.991 Month
- 野离子表单年会员$6.991 Year








