Comparison

tio vs Parallel

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

Head to head
About

tio

Features
Read full description

Parenting is beautiful – and often full of uncertainty. Is this normal? Should I see a doctor? What information will my pediatrician need? tio helps you prepare, document, and understand your child’s health and development – with less stress and more clarity. WHAT TIO DOES FOR YOU Prepare for doctor visits Select your pediatric practice and prepare for appointments in a structured way. tio guides you through multilingual intake questionnaires and helps you describe symptoms, concerns, and observations clearly. If needed, your information can be translated into German and shared with your practice. This is especially helpful for families who prefer speaking a language other than German at home. Understand health situations Ask questions and receive age-appropriate guidance that considers your child’s profile and previous entries. tio helps you put situations into context and better understand what may be relevant before deciding on next steps. Track your child’s development With HealthLog, you can document symptoms, milestones, medications, appointments, and observations over time. Everything stays organized, chronological, and easy to review whenever you need it. Learn with confidence Access age-appropriate information about child health and development, helping you better understand your child’s journey from infancy through the early years. AVAILABLE LANGUAGES tio is currently available in: English German Arabic Turkish Russian Japanese Additional languages are being added over time. PRIVACY FIRST Your data belongs to you. tio is designed with privacy in mind, avoids advertising and unnecessary tracking, and follows a responsible approach to handling sensitive information. FREE ACCESS & TIO CHAT Most tio features are available free of charge, including: Child profiles HealthLog Development content Appointment preparation Multilingual intake flows The tio Chat can be used for 3 free messages. After the limit is reached, a tio Plus subscription is required to continue using the chat. Subscriptions automatically renew unless cancelled through your App Store account settings. IMPORTANT NOTICE tio does not replace medical diagnosis, treatment, or emergency care. The app is intended to support preparation, documentation, orientation, and understanding. Medical decisions should always be made by qualified healthcare professionals. TIO – CLARITY BEFORE THE APPOINTMENT. TERMS OF USE (EULA) https://tiohealth.de/en/terms-of-use-app/

About

Parallel

Explore historical connections by viewing multiple timelines simultaneously. Discover who lived at the same time as historical figures and events. Create custom collections or use curated ones to delve into specific eras and topics.

Highlights
  • View multiple historical timelines
  • Discover contemporaries at a glance
  • Access concise biographies with Wikipedia links
  • Create custom history collections
  • Offline functionality
  • Private and no tracking
Features
Read full description

Who lived at the same time as Mozart, Van Gogh, or Napoleon? Parallel lays out several timelines at once, and the connections that usually stay hidden appear at a glance. It's your tool for assembling history around what interests you. Nine curated collections come built in, from the arts and sciences to rulers, empires, buildings, and the events that shaped history. They make it easy to start and give you a taste of what Parallel can do. The rest is yours to shape. For the curious, for the classroom, for everyone who loves history. WHAT YOU CAN DO • Swipe and zoom through the millennia, from antiquity to today. • Line up exactly the collections that fascinate you. • Highlight a person and see their contemporaries at a glance, while everything else fades into the background. • Open any entry for a clear, concise biography or summary, with a link to Wikipedia. • Bring dates and the Wikipedia link straight from Wikidata into your own entry. • Follow a single thread through time, filtered by topic, place, era, and more. • Create your own collections and fill them with what matters to you. Every built-in entry is carefully researched, historically grounded, and fact-checked. Try it for free Ancient Rome is included as a ready-made sample collection, no Pro needed. In a few seconds you see how a collection comes together, and it stays with you afterwards. Buy once, no subscription. You buy Parallel just once. The Pro upgrade lifts every limit: unlimited collections and entries, creating and filling your own collections from a spreadsheet or from copied text, your own copies of the built-in collections, and exporting the whole timeline as a PDF. No hidden costs. If you want to go deeper into specific topics, optional premium collections are available. Private and offline Your entries stay on your iPhone. No account, no sign-up, no tracking. The app works offline. Only the Wikidata look-up needs an internet connection. History belongs to everyone, but your data belongs to you.

Screenshots

tio4 screens
Parallel4 screens

Verdict

The call

The clearest difference is in-app purchases: tio at none against Parallel's 4. tio also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, 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. Parallel sells 4 one-off in-app purchases. tio asks for nothing beyond the download.

UpkeepUpdate frequency

tio ships an update every 2 weeks, Parallel every 3 weeks. The most recent releases landed on September 16, 2026 and September 25, 2026 respectively.

Scorecard2 real differences · 8 level
tio versus Parallel: the parameters behind the verdict, then further details
ParametertioParallel
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size86 MB5 MB
Age rating4+4+
Developertio health UG (haftungsbeschränkt)Anatol Knotek

In-app purchases

None

tio

No in-app purchases

4 purchases

Parallel

One-time4
  • Painters & Sculptors XL$1.99
  • Buildings XL$1.99
  • Science & Technology XL$1.99
Show 1 more
  • Parallel Pro$3.99

Questions

Is tio free?
tio is free to download, with no in-app purchases.
Is Parallel free?
Parallel is free to download, with in-app purchases available.
Do tio or Parallel have ads?
Neither tio nor Parallel shows ads.
Which is updated more often, tio or Parallel?
tio ships an update every 2 weeks, and Parallel every 3 weeks. Most recently, tio was updated on September 16, 2026 and Parallel on September 25, 2026.

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