Comparison

3ID vs Period Tracker

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

Head to head
About

3ID

Manage clients with a focus on the elderly, geriatric clinics, and physiotherapy professionals. It also serves doctors and clients needing ongoing monitoring and support.

Highlights
  • Client management
  • Elderly care focus
  • Geriatric clinic support
  • Physiotherapy professional tools
  • Medical monitoring
  • Doctor client management
Features
Read full description

O 3ID organiza a rotina de clínicas de fisioterapia, geriatria e cuidado continuado em um único aplicativo. Profissionais registram e acompanham atendimentos; pacientes e responsáveis acompanham o próprio histórico. PARA A CLÍNICA E OS PROFISSIONAIS • Registro de atendimentos, com acesso rápido aos últimos lançamentos • Cadastro e consulta de pacientes, organizados por empresa • Gestão da equipe, com ativação e controle de acesso dos usuários • Painel com a visão geral da operação • Favoritos, para chegar direto em quem você acompanha todo dia • Notificações configuráveis, só do que importa PARA PACIENTES E RESPONSÁVEIS • Histórico de atendimentos sempre à mão • Consulta do próprio cadastro e dos dados de contato • Canal de suporte direto com a clínica VÁRIAS EMPRESAS, UM APP Quem atende em mais de uma clínica troca de empresa sem sair do aplicativo. O 3ID deixa claro em qual contexto você está e o que fazer quando um acesso ainda está pendente. FEITO PARA O DIA A DIA Telas diretas, textos sem jargão e a próxima ação sempre visível. Áreas de toque confortáveis, suporte a textos maiores e contraste legível, para usar com pressa ou com o celular na mão entre um atendimento e outro. COMO FUNCIONA O ACESSO O 3ID é contratado pela clínica. A empresa libera o acesso aos seus profissionais, pacientes e responsáveis. Não há compra dentro do aplicativo. Suporte e informações: https://3id.com.br

About

Period Tracker

Features
Read full description

Meet Neva, a private period tracker with an illustrated companion. Log your period in one tap, see your predicted period, fertile window and ovulation, and get a daily tip for your cycle phase. Your cycle data stays on your iPhone. TRACK YOUR CYCLE • Log your period in one tap • A calendar with your predicted period, fertile window and ovulation • Predictions based on your last cycles • PCOS or irregular cycles mode: Neva shows a range instead of a single date LOG YOUR DAY • Flow, symptoms, mood, sex, ovulation test, basal temperature and notes, all in one day sheet REMINDERS • Period coming, fertile window and daily log reminders • Pill reminder with Taken and Snooze buttons YOUR COMPANION • Neva is an illustrated companion with 6 looks to choose from. Her expression follows your cycle phase • A daily tip for your phase FREE • Period logging, calendar and predictions • Day log, reminders and daily tip • Neva, your companion • Small Home Screen widget • Face ID or passcode lock • Export your data (JSON, CSV) or delete everything • 15 languages PREMIUM • Insights: average cycle and period length, variation, charts, and symptoms and moods by phase • Tips personalized to your symptoms • Medium and Lock Screen widgets PRIVATE BY DESIGN No account. Your cycle data stays on your iPhone, not on our servers. Neva only uses anonymous app analytics, never your cycle data. Premium is a weekly or annual subscription (the annual plan starts with a free trial) or a one-time lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel them in your Account Settings. Prices may vary by country. Neva shows estimates. Not a method of contraception. Not medical advice. Privacy Policy: https://www.enduranceapptitude.com/somama/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

3ID4 screens
Period Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: 3ID at none against Period Tracker's 1. 3ID also leads on update cadence (every 2 months vs every 14 months) and iOS requirement (16.4 vs 18.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Period Tracker sells 1 one-off in-app purchase. 3ID asks for nothing beyond the download.

UpkeepUpdate frequency

3ID ships an update every 2 months, Period Tracker every 14 months. The most recent releases landed on October 4, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 5 level
3ID versus Period Tracker: the parameters behind the verdict, then further details
Parameter3IDPeriod Tracker
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 2 months — betterEvery 14 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better18.0
Further details — not scored
Size57 MB21 MB
Age rating17+12+
Developer3ID FISIOTERAPIA LTDALucas Diaz

In-app purchases

None

3ID

No in-app purchases

1 purchases

Period Tracker

One-time1
  • Unlimited access$2.99

Questions

Is 3ID free?
3ID is free to download, with no in-app purchases.
Is Period Tracker free?
Period Tracker is free to download, with in-app purchases available.
Do 3ID or Period Tracker have ads?
Neither 3ID nor Period Tracker shows ads.
Which is updated more often, 3ID or Period Tracker?
3ID ships an update every 2 months, and Period Tracker every 14 months. Most recently, 3ID was updated on October 4, 2026 and Period Tracker on October 21, 2026.

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