All in One Calculator vs Todo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
All in One Calculator
Read full descriptionHide full description
Unleash the power of multiple calculators in one sleek app! From conquering fractions and solving quadratic equations to effortlessly converting between binary, decimal, octal, and hexadecimal, All in One Calculator is your ultimate math and number system companion. Need to find area and perimeter or tackle matrices with the Sarrus method? We've got you covered. Download now and simplify your calculations and conversions! Key Features: -Fraction Master: Add, subtract, multiply, and divide fractions with detailed, step-by-step procedures and simplified results. Handles decimals too! -Quadratic Equation Solver: Get both roots of any quadratic equation with a single tap! See every step, including rational and irrational answers. Perfect for understanding the process! -Sarrus Method Calculator: Instantly calculate the determinant of 3x3 matrices. Visualize the diagonals and swipe through each multiplication step. -Shape Area & Perimeter: Easily find the area and perimeter of multiple geometric shapes. Decimals are welcome! -Number System Converter: Effortlessly convert between binary, decimal, octal, and hexadecimal number systems. -Rule of Three Method AI Calculator: Get the simple proportion easily. -Memory Saver: Replace multiple single-purpose apps with this all-in-one solution. -Ad-Free & Future-Proof: Enjoy an uninterrupted experience and unlimited access to all future calculators! Download All in One Calculator today and simplify your math and number system needs!
Todo
Read full descriptionHide full description
Todo: Tasks & Notes is a clean, distraction-free organizer with two essentials: a classic Tasks list and a simple Notes notebook. No complicated menus, no noisy extras—just the quickest way to get things out of your head and done. Why you’ll like it Minimal by design: a calm interface that stays out of your way. Two focused spaces: manage to-dos in Tasks and write ideas in Notes. Faster capture: add tasks by voice or camera—speak it or snap it, and it becomes a task. All the basics you expect: quick edit, reorder, mark done, and organize. Free forever: 100% free. No subscriptions or paywalls. Key features Tasks: create, check off, and reorder with a tap. Notes: a clean notebook for thoughts, lists, and drafts. Voice to Task: dictate a task when typing isn’t convenient. Photo to Task: take a picture of a whiteboard or paper list—text becomes tasks automatically. Three themes: Classic, Dark, and Black & White to fit your focus. Simple organization: group, rename, and find items fast. Thoughtful details: readable typography, gentle animations, zero clutter. New: Themes that match your focus Choose the look that keeps you in flow: Classic — bright, friendly, familiar. Dark — easier on the eyes (and your battery) for late nights. Black & White — zero color, maximum contrast and calm. Why this matters: the fewer visual distractions, the faster you act. Pick a theme that feels invisible so your brain can stay on the work, not the UI. Make it simple. Keep it done. Todo: Tasks & Notes is built for people who want less tapping and more finishing.
Screenshots
Verdict
The clearest difference is price: Todo at Free against All in One Calculator's $1.99. Todo also leads on update cadence (every 2 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement 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
Todo is free to download; All in One Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
All in One Calculator ships an update every 3 months, Todo every 2 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | All in One Calculator | Todo |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 139 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Juan Antonio Veloz Gutierrez | Solid enterprise s.r.o. |
In-app purchases
All in One Calculator
No in-app purchases
Todo
No in-app purchases
Questions
Is All in One Calculator free?
Is Todo free?
Do All in One Calculator or Todo have ads?
Which is updated more often, All in One Calculator or Todo?
Other comparisons















