Comparison

STL Viewer vs Call Scheduler

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

Head to head
About

STL Viewer

Visualize e inspecione modelos 3D STL em seu dispositivo. Oferece ferramentas avançadas para medição, análise de malha e geração de relatórios PDF. Ideal para engenharia, impressão 3D e revisão técnica.

Highlights
  • Multitouch rotation, pan, and zoom
  • Wireframe, X-Ray, and normal orientation modes
  • Precise point-to-point measurement
  • Interactive cutting plane
  • Mesh health diagnostics
  • Generate PDF technical reports
Features
Read full description

STL Viewer transforma seu iPhone ou iPad em uma estação profissional de inspeção de modelos 3D. Abra arquivos STL binários ou ASCII e analise a geometria com uma experiência Metal fluida, criada para engenharia, impressão 3D, prototipagem, educação e revisão técnica. VISUALIZAÇÃO PROFISSIONAL • Rotação, deslocamento e zoom multitoque • Vistas isométrica, frontal, traseira, lateral, superior e inferior • Modos sólido, wireframe, sólido + wireframe, X-Ray e orientação de normais • Materiais profissionais e ambientes de alto contraste INSPEÇÃO E MEDIÇÃO • Medição precisa entre pontos selecionados diretamente na superfície • Plano de corte interativo nos eixos X, Y e Z • Dimensões gerais, área superficial e volume • Contagem de triângulos e vértices únicos • Unidades STL atribuídas pelo usuário, sem suposições silenciosas SAÚDE DA MALHA • Diagnóstico de malha fechada • Detecção de arestas abertas e não manifold • Identificação de faces degeneradas • Classificação visual da integridade do modelo RELATÓRIOS STUDIO • Relatório técnico em PDF gerado no próprio aparelho • Campos de projeto, empresa e responsável • Resumo de geometria e saúde da malha pronto para compartilhar PRIVACIDADE LOCAL-FIRST Seus modelos são processados localmente. A geometria não é enviada para nossos servidores. O plano gratuito permite abrir, navegar e visualizar arquivos STL. Pro libera inspeção e medição avançadas. Studio adiciona relatórios técnicos em PDF. Assinaturas podem ser canceladas a qualquer momento nos ajustes da App Store. by Transfer.med.br

About

Call Scheduler

Never miss an important phone call again. Schedule calls with specific dates and times, and receive timely notifications. Tap the reminder to instantly open your dialer and connect.

Highlights
  • Schedule call reminders
  • Tap to dial functionality
  • Select contacts for calls
  • Edit and manage scheduled calls
  • Simple call preparation screen
  • Local data storage
Features
Read full description

Call Scheduler is a simple reminder app designed to help you remember important phone calls. Schedule a call for a specific date and time, and receive a notification shortly before the call. When the reminder appears, simply tap it to open the call screen and start dialing using the iPhone’s built-in phone app. This app does not make calls automatically. All calls are started manually by the user. Key Features Call Reminders Schedule phone calls and receive a notification before the scheduled time so you never forget. Tap to Call Open the call preparation screen from the reminder and start dialing with a single tap. Contact Selection Choose phone numbers directly from your iOS contacts for quick scheduling. Edit and Manage Calls Update the date, time, number, or notes for any scheduled call. Simple Call Preparation Screen View the phone number, notes, and scheduled time before placing the call. Use Cases Perfect for situations where you must remember to call someone at a specific time: Business callbacks Appointment confirmations Freelancers managing client calls Daily reminders for important phone calls Elderly users who want help remembering to call Privacy Focused Your scheduled calls are stored locally on your device. Contact access is requested only when you choose to select a number from your contacts. Free Version Up to three active scheduled calls Call reminders Manual call helper Contact import Pro Version Unlimited scheduled calls Ad-free experience Call history Search by phone number or notes Home screen widget for the next scheduled call Reusable call templates Important Notes Call Scheduler does not perform automatic dialing. The app only reminds you and helps you start a call manually using the iPhone dialer. Pricing Free: schedule calls (with a limit), call history, and reusable templates. Call Scheduler Pro (monthly / yearly auto-renewable subscription): removes the scheduling limit and hides ads. Prices are shown in the app. Payment is charged to your Apple ID account and renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fillapps.com/privacy/

Screenshots

STL Viewer3 screens
Call Scheduler3 screens

Verdict

The call

The clearest difference is price: Call Scheduler at Free against STL Viewer's $0.99. Call Scheduler also leads on update cadence (every 8 days vs every 43 months) and iOS requirement (15.6 vs 17.0). STL Viewer's advantage is in-app purchases (none vs 1) and ads (none vs shown). On monetization model 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

Call Scheduler is free to download; STL Viewer costs $0.99 up front. Call Scheduler sells 1 in-app purchase, starting at $9.99 per year. STL Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

STL Viewer ships an update every 43 months, Call Scheduler every 8 days. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 5 level
STL Viewer versus Call Scheduler: the parameters behind the verdict, then further details
ParameterSTL ViewerCall Scheduler
Price$0.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 43 monthsEvery 8 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#123 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size4 MB50 MB
Age rating4+4+
DeveloperFelipe Marques de BarrosSeiya.k

Customer experience

STL Viewer

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Call Scheduler

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

STL Viewer

No in-app purchases

1 purchases

Call Scheduler

Subscriptions1
  • Pro Yearly Plan$9.991 Year

Questions

Is STL Viewer free?
STL Viewer costs $0.99, with no in-app purchases.
Is Call Scheduler free?
Call Scheduler is free to download, with in-app purchases available.
Do STL Viewer or Call Scheduler have ads?
Call Scheduler shows ads; STL Viewer does not.
Which is updated more often, STL Viewer or Call Scheduler?
STL Viewer ships an update every 43 months, and Call Scheduler every 8 days. Most recently, STL Viewer was updated on October 19, 2026 and Call Scheduler on October 13, 2026.

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