Average Calculator vs Helperbird
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Average Calculator
This app calculates various statistical measures including arithmetic mean, geometric mean, harmonic mean, standard deviation, and confidence interval for a given set of numbers. Results can be easily shared via email.
- Arithmetic mean calculation
- Geometric mean calculation
- Harmonic mean calculation
- Standard deviation calculation
- Confidence interval calculation
- Email results
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Calculates the arithmetic mean, the geometric mean and the harmonic mean as well as the standard deviation and the confidence interval of a set of numbers. The calculator results can be emailed.
Helperbird
Enhance reading and writing with advanced tools for dyslexia and accessibility. Features include voice typing, immersive reading, and customizable text settings to make web content easier to access and understand for all users.
- Immersive Reader
- Dyslexia support
- Voice typing
- Reading mode
- Text customization
- Summarize content
- OCR screenshot reader
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Helperbird is your go-to for advanced reading, writing, and accessibility controls. Our features include voice typing, dyslexia support, an immersive reader, and a reading mode. Tailored to fit diverse abilities and learning styles, making the web accessible for all. What’s included in Helperbird? Reading features Immersive Reader by Microsoft Simplify Feature Reading Mode: Removes ads and distractions. Specialized Fonts Text to Speech options Dyslexia Ruler Line Focus Ruler Reading Ruler Auto Scrolling Dyslexia fonts Text Size Adjustment Letter Spacing Adjustment Word Spacing Adjustment Line-Height Adjustment Text Alignment Web Highlighter Marker Translation Paragraph Width Paragraph Borders Picture Dictionary Overlays & Tints Summarize Websites and PDFs Screenshot Reader Speed Reading Tools Highlight/Selector Colors Font Colors Background Colors Link Colors Volume Booster Writing features Sticky Notes on Websites and PDFs Word Prediction Voice Typing Diction / Speech to Text Translation Spell Check Text Analysis Web Highlighter Marker English Dictionary by Helperbird PDF Reader by Helperbird Screenshot Reader Extract Text (OCR) from Images & Videos Print Accessibility features Dyslexia Ruler Line Focus Ruler Reading Ruler Paragraph Customizations Dyslexia Fonts (OpenDyslexic, Lexend Deca, +14 others) Reduce Motion Auto Scrolling High Contrast Overlays Video Playback Adjustments Grayscale Mode Emphasize Links Color Blindness Controls Overlays & Tints Increase and Decrease Cursor Size Show Alt and Title Tags Hide Images and GIFs to Improve Reading Focus Saturation Control Shortcuts Phonics Reading Helperbird Apps Immersive Reader by Microsoft English Dictionary by Helperbird Feature-filled Document Editor Reading List by Helperbird PDF Reader by Helperbird App Support Google Docs Add-on by Helperbird Google Slides Add-on by Helperbird Google Classroom Support Microsoft Word Online Support Grammarly Support Sync Settings Across Browsers To see all the features and learn more, check out https://www.helperbird.com/features/ Privacy & Compliance Strict privacy policy: No user data selling or storage. Compliance with COPPA, FERPA, GDPR. Support Email: robert.gabriel@helperbird.com Helperbird Support Page: https://www.helperbird.com/support/ Proudly founded by a dyslexic software engineer in Ireland, fueled by coffee & love.
Screenshots
Verdict
The clearest difference is review sentiment: Helperbird at 60% against Average Calculator's 0%. Helperbird also leads on price (Free vs $0.99) and rating (4.5 vs 1.0). Average Calculator's advantage is iOS requirement (12.0 vs 15.0). On ads, in-app purchases 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
Helperbird is free to download; Average Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Helperbird holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Helperbird has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Average Calculator's written reviews are positive against 60% of Helperbird's.
Average Calculator ships an update every 13 months, Helperbird fortnightly. The most recent releases landed on September 14, 2026 and September 8, 2026 respectively.
| Parameter | Average Calculator | Helperbird |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 1.0 (1 ratings) | 4.5 (8 ratings) — better |
| Positive reviews | 0.0% of reviews | 60.0% of reviews — better |
| Number of ratings | 1 | 8 — better |
| Update frequency | Every 13 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | Coffee & Fun LLC |
Customer experience
Average Calculator
Helperbird
In-app purchases
Average Calculator
No in-app purchases
Helperbird
No in-app purchases
Questions
Is Average Calculator free?
Is Helperbird free?
Which has better reviews, Average Calculator or Helperbird?
Do Average Calculator or Helperbird have ads?
Which is updated more often, Average Calculator or Helperbird?
Other comparisons
