Build38 OTP vs nextappcon
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Build38 OTP
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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.
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.
- 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
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BUILD WHATβS NEXT β your official companion for next.app devCon, the worldβs largest conference for mobile app developers, taking place October 7β9, 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 whatβs 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 βiOS, 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 theyβre 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 Itβs 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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Build38 OTP ships an update every 2 months, nextappcon every 5 days. Both last shipped on October 8, 2026.
| Parameter | Build38 OTP | nextappcon |
|---|---|---|
| Price | Free | Free |
| Positive reviews | β | 0.0% of reviews |
| Update frequency | Every 2 months | Every 5 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | β | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 β better | 16.0 |
| Further details β not scored | ||
| Size | 19 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Build38 | Mobile Seasons GmbH |
In-app purchases
Build38 OTP
No in-app purchases
nextappcon
No in-app purchases









