Comparison

Chart Neo vs BillingsAppTM

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Chart Neo

This app simplifies menstrual cycle tracking by combining proven methods into an easy-to-use interface. It offers fast recording, offline functionality, and detailed chart viewing, with an accompanying web portal for advanced features and advisor interaction.

Highlights
  • Combines proven charting methods
  • Fast and easy sign recording
  • Offline functionality
  • View historical charts
  • Web portal access
  • Share with spouse/devices
  • Apple Watch companion app
Features
Read full description

Creighton. Sympto-Thermal. Marquette. Billings. So many different methods to track your menstrual cycle. It can be confusing to find one that works for you. Neo takes the proven elements from these and many others to create an easy, fast, and powerful way to chart. - Free *45 Day* trial. We want to be sure the app is working well for you! Very low cost afterward. - Starts up faster than any other charting app. Super easy to record your sign and get on with your life. - Still works without a cell or WiFi signal. Often there is not a good signal where you may be recording your signs! - View your chart on your device, going as far back as you like. View multiple cycles at once! - Access to a powerful web portal where you can create PDFs of your chart, interact with an advisor, and more. - Share with your spouse! Share your account across multiple devices. - Apple Watch companion app - Optional HealthKit integration - Continuous updates and new features added thanks to feedback from users

About

BillingsAppTM

Track your fertility using the Billings Ovulation Method® with daily entries and chart sharing. Access premium features like direct teacher contact, chart printing, and custom color palettes through a subscription.

Highlights
  • Daily entry registration
  • Spouse and device linking
  • Share chart with teacher
  • Save charts securely
  • Offline registration
  • Direct teacher questions
  • Print and email charts
Features
Read full description

With our Free Version you will be able to: 1) Register daily entries using the Billings Ovulation Method® Chart 2) Link your account with your spouse and with all your mobile devices 3) Contact and share your chart with an Accredited Teacher 4) Safely save your charts 5) Register without Internet With our PREMIUM Subscription you will be able to: 1) Ask question directly to Accredited Teachers 2) Print your Charts 3) Email your Charts in PDF format 4) Create a reminder so you don´t forget 5) Select Custom Palette Colors 6) Backup all your charts in your device With the Free Version we want to reach all BOM Users and help them to easily keep their daily chart entries in a matter of seconds. Furthermore, buying the PREMIUM Subscription you are helping the association in your country and WOOMB International World Wide Organization.

Screenshots

Chart Neo3 screens
BillingsAppTM4 screens

Verdict

The call

The clearest difference is review sentiment: Chart Neo at 80% against BillingsAppTM's 32%. Chart Neo also leads on rating (4.8 vs 3.1) and ratings volume (72 vs 15). BillingsAppTM's advantage is update cadence (fortnightly vs every 6 weeks). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Chart Neo sells 2 one-off in-app purchases and BillingsAppTM sells 4 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Chart Neo holds the better App Store score, 4.8 against 3.1. Both are backed by a comparable volume of ratings — 72 and 15 respectively. Written reviews point the same way: 80% of Chart Neo's written reviews are positive against 32% of BillingsAppTM's.

UpkeepUpdate frequency

Chart Neo ships an update every 6 weeks, BillingsAppTM fortnightly. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
Chart Neo versus BillingsAppTM: the parameters behind the verdict, then further details
ParameterChart NeoBillingsAppTM
PriceFreeFree
Rating4.8 (72 ratings) — better3.1 (15 ratings)
Positive reviews79.5% of reviews — better32.1% of reviews
Number of ratings72 — better15
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS13.6 — better15.0
Further details — not scored
Size15 MB11 MB
Age rating12+4+
DeveloperNeoFertility LLCApplied Programming LLC

Customer experience

Chart Neo

All ratings72 ratings
Positive97.2%
Neutral2.8%
Negative0.0%
Written reviews44 reviews
Positive79.5%
Neutral4.5%
Negative15.9%

BillingsAppTM

All ratings15 ratings
Positive40.0%
Neutral20.0%
Negative40.0%
Written reviews28 reviews
Positive32.1%
Neutral21.4%
Negative46.4%

In-app purchases

2 purchases

Chart Neo

One-time2
  • One Year of Chart Neo$19.99
  • Cycle Charting Basics$99.99
4 purchases

BillingsAppTM

Subscriptions1
  • Billings App Premium$9.991 Year
One-time3
  • Grafica Billings PREMIUM$2.99
  • Billings PREMIUM 1 Year$9.99
  • Billings PREMIUM 5 Years$24.99

Questions

Is Chart Neo free?
Chart Neo is free to download, with in-app purchases available.
Is BillingsAppTM free?
BillingsAppTM is free to download, with in-app purchases available.
Which has better reviews, Chart Neo or BillingsAppTM?
Chart Neo is rated higher. Chart Neo averages 4.8 out of 5 from 72 ratings, while BillingsAppTM averages 3.1 from 15 ratings.
Do Chart Neo or BillingsAppTM have ads?
Neither Chart Neo nor BillingsAppTM shows ads.
Which is updated more often, Chart Neo or BillingsAppTM?
Chart Neo ships an update every 6 weeks, and BillingsAppTM fortnightly. Most recently, Chart Neo was updated on September 24, 2026 and BillingsAppTM on September 21, 2026.

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