Comparison

Build38 OTP vs nextappcon

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

Head to head
About

Build38 OTP

Features
Read full description

Securely manage your two-factor authentication codes with ease. Build38 OTP lets you add and organize your TOTP tokens in just a few steps, helping you keep your accounts protected. Benefit from industry-leading mobile app security by Build38.

About

nextappcon

This app serves as an official companion for a large mobile app developer conference, offering a personalized schedule, speaker profiles, and venue navigation. It provides live updates and offline access to session details, helping attendees make the most of the event.

Highlights
  • Personalized schedule builder
  • Speaker profiles and session listings
  • Live event updates
  • Interactive venue navigation
  • Session filtering by track/topic
  • Networking features
  • Offline access to agenda
Features
Read full description

BUILD WHAT’S NEXT β€” your official companion for next.app devCon, the world’s largest conference for mobile app developers, taking place October 7–9, 2026 at CityCube Berlin. next.app devCon brings together 8 co-located developer conferences under one roof β€” droidCon, swiftCon, flutterCon, reactCon, XR & Game developerCon, agentic codingCon , masCon and techlead summit. With 400+ sessions and workshops, 450 speakers and 21 concurrent stages, this app is the fastest way to find real code and real case studies β€” no fluff β€” across all three days. KEY FEATURES Personal Schedule Browse the full program across all 8 conferences and build your own agenda. Bookmark sessions, workshops and keynotes, and get reminders before they start. Speaker Profiles Explore bios, talks and social links for 450+ speakers, and see everything a speaker is presenting in one place. Live Updates Room changes, timing shifts and last-minute announcements are pushed straight to your phone, so your schedule always reflects what’s actually happening on-site. Venue Navigation Find your way around CityCube Berlin with interactive floor plans covering all 21 stages, so you spend less time searching and more time learning. Track & Topic Filters Filter sessions by conference track β€”iOS, XR, AI-assisted coding, mobile security or engineering leadership β€” to focus on what matters to you. Networking Connect with fellow attendees, speakers and sponsors, and see who else is at the event. Sponsors & Partners Discover the companies powering next.app devCon and see what they’re showcasing on-site. Offline Access Your agenda and session details stay available even without an internet connection, so a packed exhibition hall never gets in the way of your plans. Who It’s For, iOS developer, working on XR and games, exploring agentic coding and AI tools, focused on mobile application security, or leading an engineering team, next.app devCon has a track built for you β€” and this app helps you get the most out of every session. next.app devCon is organized by Mobile Seasons GmbH, built on the foundation of droidcon and its sister conferences since 2009. Download the app now to start building your schedule for Berlin.

Screenshots

Build38 OTP3 screens
nextappcon4 screens

Verdict

The call

The clearest difference is update cadence: nextappcon at every 5 days against Build38 OTP's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Build38 OTP ships an update every 2 months, nextappcon every 5 days. Both last shipped on October 8, 2026.

Scorecard1 real difference Β· 7 level
Build38 OTP versus nextappcon: the parameters behind the verdict, then further details
ParameterBuild38 OTPnextappcon
PriceFreeFree
Positive reviewsβ€”0.0% of reviews
Update frequencyEvery 2 monthsEvery 5 days β€” better
AdsNoNo
In-app purchasesNoNo
Monetizationβ€”Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 β€” better16.0
Further details β€” not scored
Size19 MB66 MB
Age rating4+4+
DeveloperBuild38Mobile Seasons GmbH

In-app purchases

None

Build38 OTP

No in-app purchases

None

nextappcon

No in-app purchases

Questions

Is Build38 OTP free?
Build38 OTP is free to download, with no in-app purchases.
Is nextappcon free?
nextappcon is free to download, with no in-app purchases.
Do Build38 OTP or nextappcon have ads?
Neither Build38 OTP nor nextappcon shows ads.
Which is updated more often, Build38 OTP or nextappcon?
Build38 OTP ships an update every 2 months, and nextappcon every 5 days. Most recently, Build38 OTP was updated on October 8, 2026 and nextappcon on October 8, 2026.

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