Health & wellness
Two of Us — Flat-Fee Fertility Coach
A flat annual fertility tracker for couples trying to conceive: shared charts, clearer ovulation timing, and a doctor-ready report.
In plain English
- What category is this?
- Clinics, coaches, and consumers buy for care, fitness, or wellbeing workflows. Here the focus is consumer health subscription.
- The idea, briefly
Build a flat-priced, no-auto-renew conception companion for couples that merges basal body temperature, LH strips, cervical mucus and wearable signals into one shared chart with a doctor-ready report, connecting the thermometer/strips/wearable the user already owns instead of bundling hardware.
More ▾- What buyers expect
People comparing tools like Natural Cycles, Flo, Fertility Friend expect the basics to work without surprise fees or missing pieces. The loud complaints are: Natural Cycles' own policy is non-refundable, requires cancellation at least 24 hours before renewal, and states that deleting the app does not cancel the subscription; and billing complaints against Natural Cycles describe being charged the night before a planned cancellation and being refused refunds. Quoted from review text (snippet-only; the complaint page body is JavaScript-rendered and the page returned no readable body): 'Their billing, cancellation, and refund policies are the absolute worst. A joke. They automatically bill you and refuse to refund you once you’re billed. nd 'at this point I’ve been charged $250 for an app I did not even open. No refunds!'.
More ▾
- Sources
- 13
- Checked
- 10
- Competitors
- 4
- Gaps
- 7
- Page checked
- 10 · 77%
- Snippet only
- 3 · 23%
- Documented
- 8 · 57%
- Interpreted
- 6 · 43%
- pricing6
- complaint6
- revenue1
Competitors
4- Natural CyclesFree
- Fertility FriendFree
Parsed from public pricing blurbs (entry paid tier when available). Max in set: $1/mo.
| Competitor | From | Free tier | Source |
|---|---|---|---|
| Natural Cycles | Free | Yes | apps.apple.com✓ |
| Flo | See notes | — | apps.apple.com✓ |
| Fertility Friend | Free | Yes | apps.apple.com✓ |
| Inito | See notes | — | inito.com✓ |
What customers complain about
7| Gap | Src |
|---|---|
Natural Cycles' own policy is non-refundable, requires cancellation at least 24 hours before renewal, and states that deleting the app does not cancel the subscription. | |
Billing complaints against Natural Cycles describe being charged the night before a planned cancellation and being refused refunds. Quoted from review text (snippet-only; | |
A user reports a renewal hike: 'the renewal price is increasing to $140 USD. When I began using it the cost was about $75/year and they’ve double the cost since then.' (snippet-on… | |
TTC users report Natural Cycles mis-predicts the fertile window. Quoted (snippet-only; the Reddit thread returned no body on fetch). | |
Flo users complain about constant paywall pressure on a previously free tracker. Quoted from opened App Store reviews. | |
The BBB profile shows an F rating, 'Not BBB Accredited', and 45 complaints closed in the last three years (plus 8 customer reviews). | |
Neither leading app gives the male partner an active role: Natural Cycles offers a read-only partner view ('NC° partner view lets you choose to allow your partner to follow your p… |
Documented Interpreted
How competitors find customers
3| Tactic | Src |
|---|---|
| Publish free web calculators and a health library as search top-of-funnel into a free app, then upsell Premium. Flo's own site lists ovulation, due-date, implantation, | flo.health✓ |
| Give the tracker away free and let scale follow the funnel. Flo's App Store listing reports over 500 million total downloads (July 2026) from the free-core model. | apps.apple.com✓ |
| Run a no-credit-card 30-day premium trial and publish a public, searchable gallery of real user charts so other users find the product through shared charts. | apps.apple.com✓ |
Your angle & pricing wedge
| Piece | Claim | Src |
|---|---|---|
| Angle | A flat-priced, no-auto-renew conception companion for couples that merges basal body temperature, LH strips, | fertilityfriend.com✓ |
| Wedge | Mechanism: charge one flat software-only fee (target $29–$39/year, or a one-time lifetime price), never auto-renew, and include the interpretation, | apps.apple.com✓ |
How others got traction
3| Move | Why | Src |
|---|---|---|
| Flo gave away the core period/ovulation tracker free and published a library of free web calculator… | Company-attributed on Flo's own pages: the free tier is 'best-in-class period and ovulation tracking' while Premium unlocks deeper insight,… | flo.health✓ |
| Fertility Friend kept its core free, never auto-renews, and offers a no-card 30-day VIP trial. | Company-attributed on Fertility Friend's own membership page. | fertilityfriend.com✓ |
| Natural Cycles bundles a free NC° Band with its annual subscription and integrates Oura, WHOOP, | Company-attributed on the app listing: 'Sign up to NC° Annual subscription and receive a free NC° Band', | apps.apple.com✓ |
Market heat
Natural Cycles states its app is 'Trusted by 6M+ women' and is FDA-cleared for birth control (self-reported, app listing).
Flo's App Store listing reports the app is 'used by over 500 million* women worldwide', with the listing's own footnote defining the figure as total downloads (July 2026, self-reported).
More ▾Flo's Premium page reports 3.4 million Flo Premium members (self-reported; the page's own reference is dated 'As of October 6, 2023', so the figure is stale).
Inito reports 200,000+ couples and 10M+ tests taken on its hardware-based tracker.
The Better Business Bureau profile for Natural Cycles shows an F rating and 45 complaints closed in the last three years.
Revenue signals
5| Signal | Src |
|---|---|
Flo reports 500 million total downloads (July 2026) on its App Store listing (self-reported; the listing's own footnote defines the figure as downloads). | apps.apple.com✓ |
Flo reports 3.4 million Premium members on its Premium page (self-reported; the page reference is dated 'As of October 6, 2023', so treat as stale). | flo.health✓ |
Natural Cycles reports 6M+ women using the app (self-reported on its listing). | apps.apple.com✓ |
Inito reports 200,000+ couples and 10M+ tests taken. | inito.com✓ |
Fertility Friend reports 1M+ recorded pregnancies and 240,000+ shared cycles over 25+ years. | apps.apple.com✓ |
Should you build this?
People trying to conceive, and especially couples doing it together, may pay a small flat fee for confidence they are timing the fertile window right and for a clean report to bring to a doctor. The job: log temperature, ovulation strips, mucus and wearable data into one shared chart, get a clear 'try today' signal, and after a few months hand a doctor a real cycle history. The catch: being cheap and refusing to auto-renew is already done well by Fertility Friend, and Natural Cycles owns the FDA-cleared birth-control claim, so price alone will not win. The product only stands if its ovulation interpretation is visibly better on irregular and mis-predicted cycles and if the male partner actually gets something useful to do.
More ▾
All sources
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|---|---|---|---|
| pricing | page checked | 2026-10-04 | |
| complaint | page checked | 2026-10-04 | |
| complaint | page checked | 2026-10-04 | |
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| revenue | page checked | 2026-10-04 | |
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| pricing | page checked | 2026-10-04 | |
| complaint | snippet only | 2026-10-04 | |
| complaint | snippet only | 2026-10-04 | |
| complaint | snippet only | 2026-10-04 | |
| complaint | page checked | 2026-10-04 |