Comparison

Simpli vs Indonesian, English, Esperanto, Glosa, Globish.

Simple: "I see you"

LanguageSentence
Simplimi sii yu
IndonesianSaya lihat kamu
EnglishI see you
EsperantoMi vidas vin
GlosaMi vide tu
GlobishI see you

Medium: "Tomorrow, I will see you at my brother's house"

LanguageSentence
Simplitumoro mi sii yu at haus broder mi
IndonesianBesok, saya akan bertemu Anda di rumah saudara laki-laki saya
EnglishTomorrow, I will see you at my brother's house
EsperantoMorgaŭ, mi vidos vin ĉe la domo de mia frato
GlosaCrasti, mi vide tu a dom de mi fratri
GlobishTomorrow, I will see you at my brother's house

More complex: "Next week I will go to the market to buy food for my family"

LanguageSentence
Simplinekst wik mi go to market to bai fuud for famli mi
IndonesianMinggu depan saya akan pergi ke pasar untuk membeli makanan untuk keluarga saya
EnglishNext week I will go to the market to buy food for my family
EsperantoSemajnon poste mi iros al la merkato por aĉeti manĝaĵon por mia familio
GlosaProxi semani mi go a marketa e merka fag pro mi familia
GlobishNext week I will go to the market to buy food for my family

Takeaway: Simpli is simpler than Esperanto, more regular than English, more intuitive than Glosa.