next.calc vs Smart Spam Filter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
next.calc
A beautifully designed calculator app that offers a modern and intuitive user experience. It features personalization options, live activities, and widgets for quick access, along with advanced editing capabilities for complex expressions.
- Free with no ads or tracking
- Customizable themes
- Live Activities and Lock Screen Widgets
- One-handed keyboard
- Infix calculations with syntax highlighting
- Infinite history and favorite expressions
- Cursor gestures and trackpad support
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next.calc is a beautiful and intuitive calculator, reimagined for the modern era, with many useful features: Completely Free - No cost, no ads, no tracking! Themes - Personalize to match your style Live Activities - Quickly jump back into an unfinished expression Lock Screen Widgets - Quickly access from the lock screen One-Handed Keyboard - Effortlessly use on larger phones and tablets A Cursor - Allows for easy typing and editing, just like typing in Messages or Notes Infix Calculations - See the full expression, in context, as you type Multi-Lined Expressions - Making long expressions a pleasure to edit Syntax Highlighting - Makes expressions easier to digest Real-Time Answers - See the answer as you type Infinite History - Easily jump back to a previous expression or answer Favorite Expressions with Notes - Great for storing budgets, calculating tips, formulas, etc. Intuitive Cursor Gestures - Swipe left and right on the keyboard to quickly move the cursor Intuitive Keyboard Gestures - Swipe down (or long press) on keys with secondary values Keyboard and Trackpad Support - Works great with the Magic Keyboard iPad Support & Multitasking - Supports Split View and Slide Over Copy, Cut, and Paste - Double tap on numbers to quickly select and edit them Beautiful Handmade Animations and Icons - Makes the app a delight and a pleasure to use And more!
Smart Spam Filter
This AI-powered application automatically filters unwanted spam and smishing messages. It utilizes advanced AI models, both online and on-device, to detect and block new types of fraudulent texts in real-time. Additional features include custom blacklisting and whitelisting for enhanced control.
- AI-based spam/smishing filtering
- Online real-time AI detection
- On-device AI learning
- Keyword and number blocking
- Whitelist functionality
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Smart AI spam blocker app created by Korean AI researcher Stock adverts, Toto rooms, bank fraud texts, expert reading rooms... We have created a smart AI-based spam/smishing filtering app for those who are tired of countless spam texts and spam coming from new numbers even if you block them! Smart SMS spam/smishing auto filter app using the latest AI! AI mode without keyword registration! - Online AI: The smartest filtering to catch new types of spam and smishing in real-time. - On-device AI: Filtering done by AI on your phone that gets smarter every week. And more... - Blacklist word- and number-based blocking - Whitelist word and number-based filters Free yourself from spam!
Screenshots
Verdict
The clearest difference is rating: next.calc at 5.0 against Smart Spam Filter's 4.4. next.calc also leads on monetization model (free vs free with in-app purchases) and ratings volume (40 vs 9). On price, review sentiment, update cadence and ads 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
Both are free to download. next.calc sells 3 one-off in-app purchases and Smart Spam Filter sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
next.calc holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 40 and 9 respectively. Written reviews point the same way: 100% of next.calc's written reviews are positive against 98% of Smart Spam Filter's.
next.calc ships an update every 5 weeks, Smart Spam Filter monthly. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.
| Parameter | next.calc | Smart Spam Filter |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (40 ratings) — better | 4.4 (9 ratings) |
| Positive reviews | 100.0% of reviews — better | 98.1% of reviews |
| Number of ratings | 40 — better | 9 |
| Update frequency | Every 5 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 22 MB |
| Age rating | 4+ | 12+ |
| Developer | Josh Angelsberg | Junbum Lee |
Customer experience
next.calc
Smart Spam Filter
In-app purchases
next.calc
- Buy me a slice of pizza$2.99
- Buy me a coffee$4.99
- Buy me a burrito$9.99
Smart Spam Filter
- Buy a cup of coffee per month$2.991 Month
- Support a chicken per year$29.991 Year









