#1 Age Calculator vs IDDSI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
#1 Age Calculator
Quickly determine a person's chronological age with this straightforward calculator. It automatically computes age upon entering a birth date and can also calculate age for a past date.
- Automatic chronological age calculation
- Enter birth date to calculate age
- Calculate age for an earlier date
- Simple and fast interface
- Reliable results
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***The Most Downloaded & Highest Rated Chronological Age Calculator for iPad & iPhone in the App Store*** On the go and need to figure out someone's Chronological Age? Our #1 Chronological Age Calculator is the easiest way, that's why it's #1. It automatically calculates chronological age when you enter or change the birth date. Do you need an age for an earlier date? You can do that too. Yep, it's that easy.
IDDSI
Access the IDDSI framework for food texture and drink thickness testing. This tool provides easy lookup of descriptors and tests, suitable for all ages and care settings to assist individuals with dysphagia.
- IDDSI framework access
- Food texture descriptors
- Drink thickness tests
- Easy lookup
- Applicable to all ages
- Supports all care settings
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Have the IDDSI framework at your fingertips - get access to the descriptors and look up the different IDDSI food texture and drink thickness tests easily either in the lab, office or at home. The IDDSI Framework is culturally sensitive, measurable and applicable to individuals of all age groups in all care settings, designed in an effort to help those with dysphagia.
Screenshots
Verdict
The clearest difference is review sentiment: #1 Age Calculator at 43% against IDDSI's 0%. #1 Age Calculator also leads on rating (3.4 vs 1.6) and ratings volume (831 vs 14). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
#1 Age Calculator holds the better App Store score, 3.4 against 1.6. That said, the two scores are not equally well evidenced: #1 Age Calculator has 831 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 43% of #1 Age Calculator's written reviews are positive against 0% of IDDSI's.
#1 Age Calculator ships an update every 8 months, IDDSI every 21 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | #1 Age Calculator | IDDSI |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (831 ratings) — better | 1.6 (14 ratings) |
| Positive reviews | 42.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 831 — better | 14 |
| Update frequency | Every 8 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 100 MB |
| Age rating | 4+ | 12+ |
| Developer | HomeSpeechHome PLLC | International Dysphagia Diet Standardisation Initiative Iddsi |
Customer experience
#1 Age Calculator
IDDSI
Bugs and requests
#1 Age Calculator
Reported bugs
3 issues- Screen layout issues after updates
- Calculation errors
- App freezes or crashes
Requested features
3 requests- Ad-free version
- Landscape mode
- Better formatting for newer devices
IDDSI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
#1 Age Calculator
No in-app purchases
IDDSI
No in-app purchases
Questions
Is #1 Age Calculator free?
Is IDDSI free?
Which has better reviews, #1 Age Calculator or IDDSI?
Do #1 Age Calculator or IDDSI have ads?
Which is updated more often, #1 Age Calculator or IDDSI?
Other comparisons
