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I will loveable capacitor app native webapp push notification spreadsheets apps script
Krispel
About this gig
Are you paying exorbitant monthly per-user fees for no-code tools like AppSheet or Glide? Or is your business operations bottlenecked by massive, fragile legacy Excel spreadsheets?
I build robust, custom code solutions utilizing Modern Web Stacks (React, Next.js, Vite) paired with Capacitor and Google Apps Script REST APIs to give you total ownership of your software infrastructure with 0 per-user licensing fees.
The Technical Architecture I Deliver:
- Robust Backend Engines: I construct customized REST APIs using Google Apps Script (doGet/doPost), transforming your spreadsheets into high-speed, secure database endpoints.
- Modern Web Frontends: Responsive, secure enterprise dashboards designed with Tailwind CSS and advanced frontend frameworks.
- Capacitor & WebView Mobile Shells: True hybrid compilation yielding native iOS (.ipa) and Android (.apk) binaries.
- Data Concurrency & Caching: Custom middlewares that prevent race conditions (multiple users overwriting data) and eliminate API rate-limiting errors.
- App Store Compliance Guarantee: I integrate native device hardware APIs (biometrics, Apple Push Notifications, background geolocation, local storage).
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Get to know Krispel
Krispel
FULLSTACK DEVELOPER SUPABASE ENGINEER SOFTWARE DEVELOPER
- FromUnited Kingdom
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English, German, Spanish
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Diagnosis in hours, permanent fix, video proof, plain English report.
AWS Certified DevOps Engineer. Your timezone works.
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FAQ
How do you prevent Google Sheets API usage limits from crashing the app?
Direct app-to-sheet calls will trigger severe throttling errors when multiple users are active. I build an intermediary script caching layer or middleware that handles read/write buffering asynchronously. This ensures absolute stability even during peak employee operational hours.
Will my app pass Apple App Store and Google Play Store reviews?
Yes. Apple routinely rejects simple web views under Guideline 4.2 (Thin Apps). By building on Capacitor, I implement native mobile device hooks—such as native secure storage, push notifications, and device authentication layers—so that your app functions as a genuine native product, passing complian
Can you migrate my legacy Excel VBA macros into the mobile application?
Local VBA scripts cannot run on mobile devices or in the cloud. As a developer, I analyze your legacy calculation logic and formulas, re-architecting them completely into fast, cloud-optimized TypeScript or serverless JavaScript logic that executes flawlessly at runtime.
How does the application handle offline data entry for field workers?
I configure Capacitor's local database plugins. If a worker loses cell service, the app saves input state locally onto the device. The minute a network connection is detected, a custom sync worker silently posts the data back to your central spreadsheet without data loss.
